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Finding the Fourth Proportional to 39,432.52, 59,148.78 and 23,005

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Solution

The fourth proportional to 39,432.52, 59,148.78 and 23,005 is: 34,507.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,432.52 : 59,148.78 = 23,005 : x
  2. Step 2: Convert to fraction form
    39,432.52/59,148.78 = 23,005/x
  3. Step 3: Cross multiply
    39,432.52x = 59,148.78 × 23,005
  4. Step 4: Simplify right side
    39,432.52x = 1,360,717,683.90
  5. Step 5: Solve for x
    x = 1,360,717,683.90/39,432.52
  6. Step 6: Final answer
    x = 34,507.50

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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.