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Finding the Fourth Proportional to 57,331.80, 85,924.80 and 51,062.40

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Solution

The fourth proportional to 57,331.80, 85,924.80 and 51,062.40 is: 76,528.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,331.80 : 85,924.80 = 51,062.40 : x
  2. Step 2: Convert to fraction form
    57,331.80/85,924.80 = 51,062.40/x
  3. Step 3: Cross multiply
    57,331.80x = 85,924.80 × 51,062.40
  4. Step 4: Simplify right side
    57,331.80x = 4,387,526,507.52
  5. Step 5: Solve for x
    x = 4,387,526,507.52/57,331.80
  6. Step 6: Final answer
    x = 76,528.67

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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.