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Finding the Fourth Proportional to 32,487.80, 48,707.40 and 17,713.40

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Solution

The fourth proportional to 32,487.80, 48,707.40 and 17,713.40 is: 26,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,487.80 : 48,707.40 = 17,713.40 : x
  2. Step 2: Convert to fraction form
    32,487.80/48,707.40 = 17,713.40/x
  3. Step 3: Cross multiply
    32,487.80x = 48,707.40 × 17,713.40
  4. Step 4: Simplify right side
    32,487.80x = 862,773,659.16
  5. Step 5: Solve for x
    x = 862,773,659.16/32,487.80
  6. Step 6: Final answer
    x = 26,556.85

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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.