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Finding the Fourth Proportional to 61,990.80, 92,986.20 and 32,417.70

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Solution

The fourth proportional to 61,990.80, 92,986.20 and 32,417.70 is: 48,626.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,990.80 : 92,986.20 = 32,417.70 : x
  2. Step 2: Convert to fraction form
    61,990.80/92,986.20 = 32,417.70/x
  3. Step 3: Cross multiply
    61,990.80x = 92,986.20 × 32,417.70
  4. Step 4: Simplify right side
    61,990.80x = 3,014,398,735.74
  5. Step 5: Solve for x
    x = 3,014,398,735.74/61,990.80
  6. Step 6: Final answer
    x = 48,626.55

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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.