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Finding the Fourth Proportional to 57,254.75, 79,011.75 and 31,761.62

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Solution

The fourth proportional to 57,254.75, 79,011.75 and 31,761.62 is: 43,831.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,254.75 : 79,011.75 = 31,761.62 : x
  2. Step 2: Convert to fraction form
    57,254.75/79,011.75 = 31,761.62/x
  3. Step 3: Cross multiply
    57,254.75x = 79,011.75 × 31,761.62
  4. Step 4: Simplify right side
    57,254.75x = 2,509,541,199.38
  5. Step 5: Solve for x
    x = 2,509,541,199.38/57,254.75
  6. Step 6: Final answer
    x = 43,831.15

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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.