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Finding the Fourth Proportional to 28,792.70, 39,732.99 and 17,614.70

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Solution

The fourth proportional to 28,792.70, 39,732.99 and 17,614.70 is: 24,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,792.70 : 39,732.99 = 17,614.70 : x
  2. Step 2: Convert to fraction form
    28,792.70/39,732.99 = 17,614.70/x
  3. Step 3: Cross multiply
    28,792.70x = 39,732.99 × 17,614.70
  4. Step 4: Simplify right side
    28,792.70x = 699,884,698.95
  5. Step 5: Solve for x
    x = 699,884,698.95/28,792.70
  6. Step 6: Final answer
    x = 24,307.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.