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Finding the Fourth Proportional to 18,666.97, 25,758.55 and 11,495.74

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Solution

The fourth proportional to 18,666.97, 25,758.55 and 11,495.74 is: 15,862.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.97 : 25,758.55 = 11,495.74 : x
  2. Step 2: Convert to fraction form
    18,666.97/25,758.55 = 11,495.74/x
  3. Step 3: Cross multiply
    18,666.97x = 25,758.55 × 11,495.74
  4. Step 4: Simplify right side
    18,666.97x = 296,113,593.58
  5. Step 5: Solve for x
    x = 296,113,593.58/18,666.97
  6. Step 6: Final answer
    x = 15,862.97

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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.