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Finding the Fourth Proportional to 58,380.80, 87,652.30 and 40,569.50

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Solution

The fourth proportional to 58,380.80, 87,652.30 and 40,569.50 is: 60,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,380.80 : 87,652.30 = 40,569.50 : x
  2. Step 2: Convert to fraction form
    58,380.80/87,652.30 = 40,569.50/x
  3. Step 3: Cross multiply
    58,380.80x = 87,652.30 × 40,569.50
  4. Step 4: Simplify right side
    58,380.80x = 3,556,009,984.85
  5. Step 5: Solve for x
    x = 3,556,009,984.85/58,380.80
  6. Step 6: Final answer
    x = 60,910.61

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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.