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Finding the Fourth Proportional to 65,126.60, 89,879.53 and 36,449.13

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Solution

The fourth proportional to 65,126.60, 89,879.53 and 36,449.13 is: 50,302.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,126.60 : 89,879.53 = 36,449.13 : x
  2. Step 2: Convert to fraction form
    65,126.60/89,879.53 = 36,449.13/x
  3. Step 3: Cross multiply
    65,126.60x = 89,879.53 × 36,449.13
  4. Step 4: Simplify right side
    65,126.60x = 3,276,030,764.43
  5. Step 5: Solve for x
    x = 3,276,030,764.43/65,126.60
  6. Step 6: Final answer
    x = 50,302.50

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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.