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Finding the Fourth Proportional to 11,006.70, 16,518.15 and 7,307.70

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Solution

The fourth proportional to 11,006.70, 16,518.15 and 7,307.70 is: 10,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,006.70 : 16,518.15 = 7,307.70 : x
  2. Step 2: Convert to fraction form
    11,006.70/16,518.15 = 7,307.70/x
  3. Step 3: Cross multiply
    11,006.70x = 16,518.15 × 7,307.70
  4. Step 4: Simplify right side
    11,006.70x = 120,709,684.76
  5. Step 5: Solve for x
    x = 120,709,684.76/11,006.70
  6. Step 6: Final answer
    x = 10,966.93

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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.