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Finding the Fourth Proportional to 60,928.32, 84,079.40 and 34,070.88

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Solution

The fourth proportional to 60,928.32, 84,079.40 and 34,070.88 is: 47,016.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,928.32 : 84,079.40 = 34,070.88 : x
  2. Step 2: Convert to fraction form
    60,928.32/84,079.40 = 34,070.88/x
  3. Step 3: Cross multiply
    60,928.32x = 84,079.40 × 34,070.88
  4. Step 4: Simplify right side
    60,928.32x = 2,864,659,147.87
  5. Step 5: Solve for x
    x = 2,864,659,147.87/60,928.32
  6. Step 6: Final answer
    x = 47,016.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.