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Finding the Fourth Proportional to 23,089.92, 31,860.02 and 13,655.04

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Solution

The fourth proportional to 23,089.92, 31,860.02 and 13,655.04 is: 18,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,089.92 : 31,860.02 = 13,655.04 : x
  2. Step 2: Convert to fraction form
    23,089.92/31,860.02 = 13,655.04/x
  3. Step 3: Cross multiply
    23,089.92x = 31,860.02 × 13,655.04
  4. Step 4: Simplify right side
    23,089.92x = 435,049,847.50
  5. Step 5: Solve for x
    x = 435,049,847.50/23,089.92
  6. Step 6: Final answer
    x = 18,841.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.