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Finding the Fourth Proportional to 18,245.76, 25,179.13 and 9,862.26

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Solution

The fourth proportional to 18,245.76, 25,179.13 and 9,862.26 is: 13,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.76 : 25,179.13 = 9,862.26 : x
  2. Step 2: Convert to fraction form
    18,245.76/25,179.13 = 9,862.26/x
  3. Step 3: Cross multiply
    18,245.76x = 25,179.13 × 9,862.26
  4. Step 4: Simplify right side
    18,245.76x = 248,323,151.29
  5. Step 5: Solve for x
    x = 248,323,151.29/18,245.76
  6. Step 6: Final answer
    x = 13,609.91

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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.