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Finding the Fourth Proportional to 32,405.70, 48,608.55 and 20,732.10

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Solution

The fourth proportional to 32,405.70, 48,608.55 and 20,732.10 is: 31,098.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,405.70 : 48,608.55 = 20,732.10 : x
  2. Step 2: Convert to fraction form
    32,405.70/48,608.55 = 20,732.10/x
  3. Step 3: Cross multiply
    32,405.70x = 48,608.55 × 20,732.10
  4. Step 4: Simplify right side
    32,405.70x = 1,007,757,319.46
  5. Step 5: Solve for x
    x = 1,007,757,319.46/32,405.70
  6. Step 6: Final answer
    x = 31,098.15

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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.