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Finding the Fourth Proportional to 40,393.87, 55,742.25 and 22,488.49

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Solution

The fourth proportional to 40,393.87, 55,742.25 and 22,488.49 is: 31,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,393.87 : 55,742.25 = 22,488.49 : x
  2. Step 2: Convert to fraction form
    40,393.87/55,742.25 = 22,488.49/x
  3. Step 3: Cross multiply
    40,393.87x = 55,742.25 × 22,488.49
  4. Step 4: Simplify right side
    40,393.87x = 1,253,559,031.70
  5. Step 5: Solve for x
    x = 1,253,559,031.70/40,393.87
  6. Step 6: Final answer
    x = 31,033.40

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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.