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Finding the Fourth Proportional to 54,687, 82,030.56 and 13,134

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Solution

The fourth proportional to 54,687, 82,030.56 and 13,134 is: 19,701.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,687 : 82,030.56 = 13,134 : x
  2. Step 2: Convert to fraction form
    54,687/82,030.56 = 13,134/x
  3. Step 3: Cross multiply
    54,687x = 82,030.56 × 13,134
  4. Step 4: Simplify right side
    54,687x = 1,077,389,375.04
  5. Step 5: Solve for x
    x = 1,077,389,375.04/54,687
  6. Step 6: Final answer
    x = 19,701.01

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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.