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Finding the Fourth Proportional to 61,803.70, 92,708.60 and 32,279.20

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Solution

The fourth proportional to 61,803.70, 92,708.60 and 32,279.20 is: 48,420.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,803.70 : 92,708.60 = 32,279.20 : x
  2. Step 2: Convert to fraction form
    61,803.70/92,708.60 = 32,279.20/x
  3. Step 3: Cross multiply
    61,803.70x = 92,708.60 × 32,279.20
  4. Step 4: Simplify right side
    61,803.70x = 2,992,559,441.12
  5. Step 5: Solve for x
    x = 2,992,559,441.12/61,803.70
  6. Step 6: Final answer
    x = 48,420.39

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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.