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Finding the Fourth Proportional to 60,632.70, 90,987.96 and 40,664.73

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Solution

The fourth proportional to 60,632.70, 90,987.96 and 40,664.73 is: 61,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,632.70 : 90,987.96 = 40,664.73 : x
  2. Step 2: Convert to fraction form
    60,632.70/90,987.96 = 40,664.73/x
  3. Step 3: Cross multiply
    60,632.70x = 90,987.96 × 40,664.73
  4. Step 4: Simplify right side
    60,632.70x = 3,700,000,826.65
  5. Step 5: Solve for x
    x = 3,700,000,826.65/60,632.70
  6. Step 6: Final answer
    x = 61,023.19

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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.