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Finding the Fourth Proportional to 65,366.60, 90,193.91 and 43,887.52

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Solution

The fourth proportional to 65,366.60, 90,193.91 and 43,887.52 is: 60,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,366.60 : 90,193.91 = 43,887.52 : x
  2. Step 2: Convert to fraction form
    65,366.60/90,193.91 = 43,887.52/x
  3. Step 3: Cross multiply
    65,366.60x = 90,193.91 × 43,887.52
  4. Step 4: Simplify right side
    65,366.60x = 3,958,386,922.31
  5. Step 5: Solve for x
    x = 3,958,386,922.31/65,366.60
  6. Step 6: Final answer
    x = 60,556.73

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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.