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Finding the Fourth Proportional to 50,489.40, 75,744.90 and 15,432.60

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Solution

The fourth proportional to 50,489.40, 75,744.90 and 15,432.60 is: 23,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,489.40 : 75,744.90 = 15,432.60 : x
  2. Step 2: Convert to fraction form
    50,489.40/75,744.90 = 15,432.60/x
  3. Step 3: Cross multiply
    50,489.40x = 75,744.90 × 15,432.60
  4. Step 4: Simplify right side
    50,489.40x = 1,168,940,743.74
  5. Step 5: Solve for x
    x = 1,168,940,743.74/50,489.40
  6. Step 6: Final answer
    x = 23,152.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.