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Finding the Fourth Proportional to 18,752.80, 25,878.89 and 10,254.96

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Solution

The fourth proportional to 18,752.80, 25,878.89 and 10,254.96 is: 14,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.80 : 25,878.89 = 10,254.96 : x
  2. Step 2: Convert to fraction form
    18,752.80/25,878.89 = 10,254.96/x
  3. Step 3: Cross multiply
    18,752.80x = 25,878.89 × 10,254.96
  4. Step 4: Simplify right side
    18,752.80x = 265,386,981.79
  5. Step 5: Solve for x
    x = 265,386,981.79/18,752.80
  6. Step 6: Final answer
    x = 14,151.86

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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.