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Finding the Fourth Proportional to 58,728.80, 87,913.20 and 32,352.80

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Solution

The fourth proportional to 58,728.80, 87,913.20 and 32,352.80 is: 48,430.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,728.80 : 87,913.20 = 32,352.80 : x
  2. Step 2: Convert to fraction form
    58,728.80/87,913.20 = 32,352.80/x
  3. Step 3: Cross multiply
    58,728.80x = 87,913.20 × 32,352.80
  4. Step 4: Simplify right side
    58,728.80x = 2,844,238,176.96
  5. Step 5: Solve for x
    x = 2,844,238,176.96/58,728.80
  6. Step 6: Final answer
    x = 48,430.04

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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.