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Finding the Fourth Proportional to 57,069.40, 85,604.10 and 14,949.40

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Solution

The fourth proportional to 57,069.40, 85,604.10 and 14,949.40 is: 22,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,069.40 : 85,604.10 = 14,949.40 : x
  2. Step 2: Convert to fraction form
    57,069.40/85,604.10 = 14,949.40/x
  3. Step 3: Cross multiply
    57,069.40x = 85,604.10 × 14,949.40
  4. Step 4: Simplify right side
    57,069.40x = 1,279,729,932.54
  5. Step 5: Solve for x
    x = 1,279,729,932.54/57,069.40
  6. Step 6: Final answer
    x = 22,424.10

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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.