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Finding the Fourth Proportional to 65,502.60, 90,391.61 and 36,822.53

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Solution

The fourth proportional to 65,502.60, 90,391.61 and 36,822.53 is: 50,813.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,502.60 : 90,391.61 = 36,822.53 : x
  2. Step 2: Convert to fraction form
    65,502.60/90,391.61 = 36,822.53/x
  3. Step 3: Cross multiply
    65,502.60x = 90,391.61 × 36,822.53
  4. Step 4: Simplify right side
    65,502.60x = 3,328,447,319.02
  5. Step 5: Solve for x
    x = 3,328,447,319.02/65,502.60
  6. Step 6: Final answer
    x = 50,813.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.