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Finding the Fourth Proportional to 74,488.88, 111,734.52 and 18,329.12

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Solution

The fourth proportional to 74,488.88, 111,734.52 and 18,329.12 is: 27,493.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,488.88 : 111,734.52 = 18,329.12 : x
  2. Step 2: Convert to fraction form
    74,488.88/111,734.52 = 18,329.12/x
  3. Step 3: Cross multiply
    74,488.88x = 111,734.52 × 18,329.12
  4. Step 4: Simplify right side
    74,488.88x = 2,047,995,425.22
  5. Step 5: Solve for x
    x = 2,047,995,425.22/74,488.88
  6. Step 6: Final answer
    x = 27,493.98

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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.