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Finding the Fourth Proportional to 60,680.40, 91,042.20 and 58,520.40

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Solution

The fourth proportional to 60,680.40, 91,042.20 and 58,520.40 is: 87,801.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,680.40 : 91,042.20 = 58,520.40 : x
  2. Step 2: Convert to fraction form
    60,680.40/91,042.20 = 58,520.40/x
  3. Step 3: Cross multiply
    60,680.40x = 91,042.20 × 58,520.40
  4. Step 4: Simplify right side
    60,680.40x = 5,327,825,960.88
  5. Step 5: Solve for x
    x = 5,327,825,960.88/60,680.40
  6. Step 6: Final answer
    x = 87,801.43

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1.5x scale

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.