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Finding the Fourth Proportional to 64,965.40, 97,375.20 and 36,898.90

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Solution

The fourth proportional to 64,965.40, 97,375.20 and 36,898.90 is: 55,306.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,965.40 : 97,375.20 = 36,898.90 : x
  2. Step 2: Convert to fraction form
    64,965.40/97,375.20 = 36,898.90/x
  3. Step 3: Cross multiply
    64,965.40x = 97,375.20 × 36,898.90
  4. Step 4: Simplify right side
    64,965.40x = 3,593,037,767.28
  5. Step 5: Solve for x
    x = 3,593,037,767.28/64,965.40
  6. Step 6: Final answer
    x = 55,306.94

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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.