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Finding the Fourth Proportional to 58,732.42, 81,050.78 and 31,874.92

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Solution

The fourth proportional to 58,732.42, 81,050.78 and 31,874.92 is: 43,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,732.42 : 81,050.78 = 31,874.92 : x
  2. Step 2: Convert to fraction form
    58,732.42/81,050.78 = 31,874.92/x
  3. Step 3: Cross multiply
    58,732.42x = 81,050.78 × 31,874.92
  4. Step 4: Simplify right side
    58,732.42x = 2,583,487,128.44
  5. Step 5: Solve for x
    x = 2,583,487,128.44/58,732.42
  6. Step 6: Final answer
    x = 43,987.41

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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.