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Finding the Fourth Proportional to 39,612.52, 54,664.62 and 23,687.92

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Solution

The fourth proportional to 39,612.52, 54,664.62 and 23,687.92 is: 32,688.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,612.52 : 54,664.62 = 23,687.92 : x
  2. Step 2: Convert to fraction form
    39,612.52/54,664.62 = 23,687.92/x
  3. Step 3: Cross multiply
    39,612.52x = 54,664.62 × 23,687.92
  4. Step 4: Simplify right side
    39,612.52x = 1,294,891,145.39
  5. Step 5: Solve for x
    x = 1,294,891,145.39/39,612.52
  6. Step 6: Final answer
    x = 32,688.94

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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.