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Finding the Fourth Proportional to 67,405.80, 101,111.28 and 17,484.60

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Solution

The fourth proportional to 67,405.80, 101,111.28 and 17,484.60 is: 26,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,405.80 : 101,111.28 = 17,484.60 : x
  2. Step 2: Convert to fraction form
    67,405.80/101,111.28 = 17,484.60/x
  3. Step 3: Cross multiply
    67,405.80x = 101,111.28 × 17,484.60
  4. Step 4: Simplify right side
    67,405.80x = 1,767,890,286.29
  5. Step 5: Solve for x
    x = 1,767,890,286.29/67,405.80
  6. Step 6: Final answer
    x = 26,227.57

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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.