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Finding the Fourth Proportional to 32,456.31, 48,664.76 and 12,711.21

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Solution

The fourth proportional to 32,456.31, 48,664.76 and 12,711.21 is: 19,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,456.31 : 48,664.76 = 12,711.21 : x
  2. Step 2: Convert to fraction form
    32,456.31/48,664.76 = 12,711.21/x
  3. Step 3: Cross multiply
    32,456.31x = 48,664.76 × 12,711.21
  4. Step 4: Simplify right side
    32,456.31x = 618,587,920.40
  5. Step 5: Solve for x
    x = 618,587,920.40/32,456.31
  6. Step 6: Final answer
    x = 19,059.10

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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.