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Finding the Fourth Proportional to 67,386.30, 101,091.60 and 27,947.40

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Solution

The fourth proportional to 67,386.30, 101,091.60 and 27,947.40 is: 41,926.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,386.30 : 101,091.60 = 27,947.40 : x
  2. Step 2: Convert to fraction form
    67,386.30/101,091.60 = 27,947.40/x
  3. Step 3: Cross multiply
    67,386.30x = 101,091.60 × 27,947.40
  4. Step 4: Simplify right side
    67,386.30x = 2,825,247,381.84
  5. Step 5: Solve for x
    x = 2,825,247,381.84/67,386.30
  6. Step 6: Final answer
    x = 41,926.14

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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.