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Finding the Fourth Proportional to 38,051.43, 57,079.64 and 9,972.17

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Solution

The fourth proportional to 38,051.43, 57,079.64 and 9,972.17 is: 14,958.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,051.43 : 57,079.64 = 9,972.17 : x
  2. Step 2: Convert to fraction form
    38,051.43/57,079.64 = 9,972.17/x
  3. Step 3: Cross multiply
    38,051.43x = 57,079.64 × 9,972.17
  4. Step 4: Simplify right side
    38,051.43x = 569,207,873.62
  5. Step 5: Solve for x
    x = 569,207,873.62/38,051.43
  6. Step 6: Final answer
    x = 14,958.91

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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.