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Finding the Fourth Proportional to 60,871.97, 91,312.54 and 18,174.02

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Solution

The fourth proportional to 60,871.97, 91,312.54 and 18,174.02 is: 27,262.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,871.97 : 91,312.54 = 18,174.02 : x
  2. Step 2: Convert to fraction form
    60,871.97/91,312.54 = 18,174.02/x
  3. Step 3: Cross multiply
    60,871.97x = 91,312.54 × 18,174.02
  4. Step 4: Simplify right side
    60,871.97x = 1,659,516,376.19
  5. Step 5: Solve for x
    x = 1,659,516,376.19/60,871.97
  6. Step 6: Final answer
    x = 27,262.41

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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.