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Finding the Fourth Proportional to 48,257.64, 71,958.60 and 45,040.32

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Solution

The fourth proportional to 48,257.64, 71,958.60 and 45,040.32 is: 67,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,257.64 : 71,958.60 = 45,040.32 : x
  2. Step 2: Convert to fraction form
    48,257.64/71,958.60 = 45,040.32/x
  3. Step 3: Cross multiply
    48,257.64x = 71,958.60 × 45,040.32
  4. Step 4: Simplify right side
    48,257.64x = 3,241,038,370.75
  5. Step 5: Solve for x
    x = 3,241,038,370.75/48,257.64
  6. Step 6: Final answer
    x = 67,161.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.