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Finding the Fourth Proportional to 57,697.20, 79,617.60 and 32,551.20

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Solution

The fourth proportional to 57,697.20, 79,617.60 and 32,551.20 is: 44,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,697.20 : 79,617.60 = 32,551.20 : x
  2. Step 2: Convert to fraction form
    57,697.20/79,617.60 = 32,551.20/x
  3. Step 3: Cross multiply
    57,697.20x = 79,617.60 × 32,551.20
  4. Step 4: Simplify right side
    57,697.20x = 2,591,648,421.12
  5. Step 5: Solve for x
    x = 2,591,648,421.12/57,697.20
  6. Step 6: Final answer
    x = 44,918.10

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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.