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Finding the Fourth Proportional to 54,655.56, 81,976.86 and 17,214.12

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Solution

The fourth proportional to 54,655.56, 81,976.86 and 17,214.12 is: 25,819.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,655.56 : 81,976.86 = 17,214.12 : x
  2. Step 2: Convert to fraction form
    54,655.56/81,976.86 = 17,214.12/x
  3. Step 3: Cross multiply
    54,655.56x = 81,976.86 × 17,214.12
  4. Step 4: Simplify right side
    54,655.56x = 1,411,159,505.26
  5. Step 5: Solve for x
    x = 1,411,159,505.26/54,655.56
  6. Step 6: Final answer
    x = 25,819.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.