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Finding the Fourth Proportional to 65,310.17, 90,123.44 and 36,627.66

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Solution

The fourth proportional to 65,310.17, 90,123.44 and 36,627.66 is: 50,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,310.17 : 90,123.44 = 36,627.66 : x
  2. Step 2: Convert to fraction form
    65,310.17/90,123.44 = 36,627.66/x
  3. Step 3: Cross multiply
    65,310.17x = 90,123.44 × 36,627.66
  4. Step 4: Simplify right side
    65,310.17x = 3,301,010,535.21
  5. Step 5: Solve for x
    x = 3,301,010,535.21/65,310.17
  6. Step 6: Final answer
    x = 50,543.60

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1.5x scale

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.