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Finding the Fourth Proportional to 65,613.70, 90,554.88 and 36,944.11

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Solution

The fourth proportional to 65,613.70, 90,554.88 and 36,944.11 is: 50,987.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,613.70 : 90,554.88 = 36,944.11 : x
  2. Step 2: Convert to fraction form
    65,613.70/90,554.88 = 36,944.11/x
  3. Step 3: Cross multiply
    65,613.70x = 90,554.88 × 36,944.11
  4. Step 4: Simplify right side
    65,613.70x = 3,345,469,447.76
  5. Step 5: Solve for x
    x = 3,345,469,447.76/65,613.70
  6. Step 6: Final answer
    x = 50,987.36

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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.