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Finding the Fourth Proportional to 18,573.20, 25,632.78 and 10,613.88

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Solution

The fourth proportional to 18,573.20, 25,632.78 and 10,613.88 is: 14,648.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.20 : 25,632.78 = 10,613.88 : x
  2. Step 2: Convert to fraction form
    18,573.20/25,632.78 = 10,613.88/x
  3. Step 3: Cross multiply
    18,573.20x = 25,632.78 × 10,613.88
  4. Step 4: Simplify right side
    18,573.20x = 272,063,250.99
  5. Step 5: Solve for x
    x = 272,063,250.99/18,573.20
  6. Step 6: Final answer
    x = 14,648.17

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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.