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Finding the Fourth Proportional to 65,431.71, 90,246.92 and 44,188.83

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Solution

The fourth proportional to 65,431.71, 90,246.92 and 44,188.83 is: 60,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,431.71 : 90,246.92 = 44,188.83 : x
  2. Step 2: Convert to fraction form
    65,431.71/90,246.92 = 44,188.83/x
  3. Step 3: Cross multiply
    65,431.71x = 90,246.92 × 44,188.83
  4. Step 4: Simplify right side
    65,431.71x = 3,987,905,584.96
  5. Step 5: Solve for x
    x = 3,987,905,584.96/65,431.71
  6. Step 6: Final answer
    x = 60,947.60

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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.