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Finding the Fourth Proportional to 64,874.47, 89,524.73 and 38,034.85

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Solution

The fourth proportional to 64,874.47, 89,524.73 and 38,034.85 is: 52,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,874.47 : 89,524.73 = 38,034.85 : x
  2. Step 2: Convert to fraction form
    64,874.47/89,524.73 = 38,034.85/x
  3. Step 3: Cross multiply
    64,874.47x = 89,524.73 × 38,034.85
  4. Step 4: Simplify right side
    64,874.47x = 3,405,059,581.75
  5. Step 5: Solve for x
    x = 3,405,059,581.75/64,874.47
  6. Step 6: Final answer
    x = 52,486.90

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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.