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Finding the Fourth Proportional to 29,671.60, 44,523.90 and 12,140.20

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Solution

The fourth proportional to 29,671.60, 44,523.90 and 12,140.20 is: 18,217.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,671.60 : 44,523.90 = 12,140.20 : x
  2. Step 2: Convert to fraction form
    29,671.60/44,523.90 = 12,140.20/x
  3. Step 3: Cross multiply
    29,671.60x = 44,523.90 × 12,140.20
  4. Step 4: Simplify right side
    29,671.60x = 540,529,050.78
  5. Step 5: Solve for x
    x = 540,529,050.78/29,671.60
  6. Step 6: Final answer
    x = 18,217.05

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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.