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Finding the Fourth Proportional to 32,115.80, 48,216.90 and 25,549.40

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Solution

The fourth proportional to 32,115.80, 48,216.90 and 25,549.40 is: 38,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,115.80 : 48,216.90 = 25,549.40 : x
  2. Step 2: Convert to fraction form
    32,115.80/48,216.90 = 25,549.40/x
  3. Step 3: Cross multiply
    32,115.80x = 48,216.90 × 25,549.40
  4. Step 4: Simplify right side
    32,115.80x = 1,231,912,864.86
  5. Step 5: Solve for x
    x = 1,231,912,864.86/32,115.80
  6. Step 6: Final answer
    x = 38,358.47

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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.