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Finding the Fourth Proportional to 57,360.39, 79,162.98 and 33,162.40

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Solution

The fourth proportional to 57,360.39, 79,162.98 and 33,162.40 is: 45,767.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,360.39 : 79,162.98 = 33,162.40 : x
  2. Step 2: Convert to fraction form
    57,360.39/79,162.98 = 33,162.40/x
  3. Step 3: Cross multiply
    57,360.39x = 79,162.98 × 33,162.40
  4. Step 4: Simplify right side
    57,360.39x = 2,625,234,407.95
  5. Step 5: Solve for x
    x = 2,625,234,407.95/57,360.39
  6. Step 6: Final answer
    x = 45,767.37

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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.