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Finding the Fourth Proportional to 40,328.20, 60,432.90 and 29,258.20

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Solution

The fourth proportional to 40,328.20, 60,432.90 and 29,258.20 is: 43,844.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,328.20 : 60,432.90 = 29,258.20 : x
  2. Step 2: Convert to fraction form
    40,328.20/60,432.90 = 29,258.20/x
  3. Step 3: Cross multiply
    40,328.20x = 60,432.90 × 29,258.20
  4. Step 4: Simplify right side
    40,328.20x = 1,768,157,874.78
  5. Step 5: Solve for x
    x = 1,768,157,874.78/40,328.20
  6. Step 6: Final answer
    x = 43,844.21

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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.