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Finding the Fourth Proportional to 15,023.30, 20,734.68 and 9,055.88

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Solution

The fourth proportional to 15,023.30, 20,734.68 and 9,055.88 is: 12,498.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,023.30 : 20,734.68 = 9,055.88 : x
  2. Step 2: Convert to fraction form
    15,023.30/20,734.68 = 9,055.88/x
  3. Step 3: Cross multiply
    15,023.30x = 20,734.68 × 9,055.88
  4. Step 4: Simplify right side
    15,023.30x = 187,770,773.92
  5. Step 5: Solve for x
    x = 187,770,773.92/15,023.30
  6. Step 6: Final answer
    x = 12,498.64

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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.