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Finding the Fourth Proportional to 11,071,715.70, 16,607,573.55 and 8,201,934.30

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Solution

The fourth proportional to 11,071,715.70, 16,607,573.55 and 8,201,934.30 is: 12,302,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,071,715.70 : 16,607,573.55 = 8,201,934.30 : x
  2. Step 2: Convert to fraction form
    11,071,715.70/16,607,573.55 = 8,201,934.30/x
  3. Step 3: Cross multiply
    11,071,715.70x = 16,607,573.55 × 8,201,934.30
  4. Step 4: Simplify right side
    11,071,715.70x = 136,214,227,139,517.77
  5. Step 5: Solve for x
    x = 136,214,227,139,517.77/11,071,715.70
  6. Step 6: Final answer
    x = 12,302,901.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.