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Finding the Fourth Proportional to 34,393.68, 51,488.37 and 18,763.92

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Solution

The fourth proportional to 34,393.68, 51,488.37 and 18,763.92 is: 28,090.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,393.68 : 51,488.37 = 18,763.92 : x
  2. Step 2: Convert to fraction form
    34,393.68/51,488.37 = 18,763.92/x
  3. Step 3: Cross multiply
    34,393.68x = 51,488.37 × 18,763.92
  4. Step 4: Simplify right side
    34,393.68x = 966,123,655.61
  5. Step 5: Solve for x
    x = 966,123,655.61/34,393.68
  6. Step 6: Final answer
    x = 28,090.15

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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.