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Finding the Fourth Proportional to 37,602.90, 51,891.17 and 20,606.78

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Solution

The fourth proportional to 37,602.90, 51,891.17 and 20,606.78 is: 28,436.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,602.90 : 51,891.17 = 20,606.78 : x
  2. Step 2: Convert to fraction form
    37,602.90/51,891.17 = 20,606.78/x
  3. Step 3: Cross multiply
    37,602.90x = 51,891.17 × 20,606.78
  4. Step 4: Simplify right side
    37,602.90x = 1,069,309,891.82
  5. Step 5: Solve for x
    x = 1,069,309,891.82/37,602.90
  6. Step 6: Final answer
    x = 28,436.90

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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.