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Finding the Fourth Proportional to 68,665.74, 94,750.89 and 38,446.86

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Solution

The fourth proportional to 68,665.74, 94,750.89 and 38,446.86 is: 53,052.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,665.74 : 94,750.89 = 38,446.86 : x
  2. Step 2: Convert to fraction form
    68,665.74/94,750.89 = 38,446.86/x
  3. Step 3: Cross multiply
    68,665.74x = 94,750.89 × 38,446.86
  4. Step 4: Simplify right side
    68,665.74x = 3,642,874,202.71
  5. Step 5: Solve for x
    x = 3,642,874,202.71/68,665.74
  6. Step 6: Final answer
    x = 53,052.28

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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.