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Finding the Fourth Proportional to 18,414.63, 25,412.18 and 10,031.13

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Solution

The fourth proportional to 18,414.63, 25,412.18 and 10,031.13 is: 13,842.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.63 : 25,412.18 = 10,031.13 : x
  2. Step 2: Convert to fraction form
    18,414.63/25,412.18 = 10,031.13/x
  3. Step 3: Cross multiply
    18,414.63x = 25,412.18 × 10,031.13
  4. Step 4: Simplify right side
    18,414.63x = 254,912,881.16
  5. Step 5: Solve for x
    x = 254,912,881.16/18,414.63
  6. Step 6: Final answer
    x = 13,842.95

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