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Finding the Fourth Proportional to 10,502,000.70, 15,728,117.85 and 10,502,000.70

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Solution

The fourth proportional to 10,502,000.70, 15,728,117.85 and 10,502,000.70 is: 15,728,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,000.70 : 15,728,117.85 = 10,502,000.70 : x
  2. Step 2: Convert to fraction form
    10,502,000.70/15,728,117.85 = 10,502,000.70/x
  3. Step 3: Cross multiply
    10,502,000.70x = 15,728,117.85 × 10,502,000.70
  4. Step 4: Simplify right side
    10,502,000.70x = 165,176,704,670,382.47
  5. Step 5: Solve for x
    x = 165,176,704,670,382.47/10,502,000.70
  6. Step 6: Final answer
    x = 15,728,117.85

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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.