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Finding the Fourth Proportional to 42,703.80, 63,882.90 and 37,519.80

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Solution

The fourth proportional to 42,703.80, 63,882.90 and 37,519.80 is: 56,127.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,703.80 : 63,882.90 = 37,519.80 : x
  2. Step 2: Convert to fraction form
    42,703.80/63,882.90 = 37,519.80/x
  3. Step 3: Cross multiply
    42,703.80x = 63,882.90 × 37,519.80
  4. Step 4: Simplify right side
    42,703.80x = 2,396,873,631.42
  5. Step 5: Solve for x
    x = 2,396,873,631.42/42,703.80
  6. Step 6: Final answer
    x = 56,127.88

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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.