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Finding the Fourth Proportional to 66,062.48, 91,241.92 and 43,502.32

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Solution

The fourth proportional to 66,062.48, 91,241.92 and 43,502.32 is: 60,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,062.48 : 91,241.92 = 43,502.32 : x
  2. Step 2: Convert to fraction form
    66,062.48/91,241.92 = 43,502.32/x
  3. Step 3: Cross multiply
    66,062.48x = 91,241.92 × 43,502.32
  4. Step 4: Simplify right side
    66,062.48x = 3,969,235,201.25
  5. Step 5: Solve for x
    x = 3,969,235,201.25/66,062.48
  6. Step 6: Final answer
    x = 60,083.05

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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.