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Finding the Fourth Proportional to 25,133.80, 37,743.90 and 17,789.80

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Solution

The fourth proportional to 25,133.80, 37,743.90 and 17,789.80 is: 26,715.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,133.80 : 37,743.90 = 17,789.80 : x
  2. Step 2: Convert to fraction form
    25,133.80/37,743.90 = 17,789.80/x
  3. Step 3: Cross multiply
    25,133.80x = 37,743.90 × 17,789.80
  4. Step 4: Simplify right side
    25,133.80x = 671,456,432.22
  5. Step 5: Solve for x
    x = 671,456,432.22/25,133.80
  6. Step 6: Final answer
    x = 26,715.28

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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.