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Finding the Fourth Proportional to 18,407.55, 27,740.88 and 16,654.92

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Solution

The fourth proportional to 18,407.55, 27,740.88 and 16,654.92 is: 25,099.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.55 : 27,740.88 = 16,654.92 : x
  2. Step 2: Convert to fraction form
    18,407.55/27,740.88 = 16,654.92/x
  3. Step 3: Cross multiply
    18,407.55x = 27,740.88 × 16,654.92
  4. Step 4: Simplify right side
    18,407.55x = 462,022,033.10
  5. Step 5: Solve for x
    x = 462,022,033.10/18,407.55
  6. Step 6: Final answer
    x = 25,099.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.