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Finding the Fourth Proportional to 28,693.53, 39,590.43 and 16,593.96

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Solution

The fourth proportional to 28,693.53, 39,590.43 and 16,593.96 is: 22,895.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693.53 : 39,590.43 = 16,593.96 : x
  2. Step 2: Convert to fraction form
    28,693.53/39,590.43 = 16,593.96/x
  3. Step 3: Cross multiply
    28,693.53x = 39,590.43 × 16,593.96
  4. Step 4: Simplify right side
    28,693.53x = 656,962,011.80
  5. Step 5: Solve for x
    x = 656,962,011.80/28,693.53
  6. Step 6: Final answer
    x = 22,895.82

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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.