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Finding the Fourth Proportional to 57,641.58, 86,491.77 and 38,882.30

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Solution

The fourth proportional to 57,641.58, 86,491.77 and 38,882.30 is: 58,343.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,641.58 : 86,491.77 = 38,882.30 : x
  2. Step 2: Convert to fraction form
    57,641.58/86,491.77 = 38,882.30/x
  3. Step 3: Cross multiply
    57,641.58x = 86,491.77 × 38,882.30
  4. Step 4: Simplify right side
    57,641.58x = 3,362,998,948.67
  5. Step 5: Solve for x
    x = 3,362,998,948.67/57,641.58
  6. Step 6: Final answer
    x = 58,343.28

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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.