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Finding the Fourth Proportional to 18,508.59, 25,541.80 and 10,125.09

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Solution

The fourth proportional to 18,508.59, 25,541.80 and 10,125.09 is: 13,972.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,508.59 : 25,541.80 = 10,125.09 : x
  2. Step 2: Convert to fraction form
    18,508.59/25,541.80 = 10,125.09/x
  3. Step 3: Cross multiply
    18,508.59x = 25,541.80 × 10,125.09
  4. Step 4: Simplify right side
    18,508.59x = 258,613,023.76
  5. Step 5: Solve for x
    x = 258,613,023.76/18,508.59
  6. Step 6: Final answer
    x = 13,972.59

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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.