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Finding the Fourth Proportional to 54,862.70, 82,294.07 and 13,309.70

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Solution

The fourth proportional to 54,862.70, 82,294.07 and 13,309.70 is: 19,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,862.70 : 82,294.07 = 13,309.70 : x
  2. Step 2: Convert to fraction form
    54,862.70/82,294.07 = 13,309.70/x
  3. Step 3: Cross multiply
    54,862.70x = 82,294.07 × 13,309.70
  4. Step 4: Simplify right side
    54,862.70x = 1,095,308,905.46
  5. Step 5: Solve for x
    x = 1,095,308,905.46/54,862.70
  6. Step 6: Final answer
    x = 19,964.55

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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.