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Finding the Fourth Proportional to 52,712.41, 72,748.13 and 28,842.67

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Solution

The fourth proportional to 52,712.41, 72,748.13 and 28,842.67 is: 39,805.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,712.41 : 72,748.13 = 28,842.67 : x
  2. Step 2: Convert to fraction form
    52,712.41/72,748.13 = 28,842.67/x
  3. Step 3: Cross multiply
    52,712.41x = 72,748.13 × 28,842.67
  4. Step 4: Simplify right side
    52,712.41x = 2,098,250,306.71
  5. Step 5: Solve for x
    x = 2,098,250,306.71/52,712.41
  6. Step 6: Final answer
    x = 39,805.62

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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.