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Finding the Fourth Proportional to 84,744.78, 127,118.07 and 25,580.94

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Solution

The fourth proportional to 84,744.78, 127,118.07 and 25,580.94 is: 38,371.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,744.78 : 127,118.07 = 25,580.94 : x
  2. Step 2: Convert to fraction form
    84,744.78/127,118.07 = 25,580.94/x
  3. Step 3: Cross multiply
    84,744.78x = 127,118.07 × 25,580.94
  4. Step 4: Simplify right side
    84,744.78x = 3,251,799,721.59
  5. Step 5: Solve for x
    x = 3,251,799,721.59/84,744.78
  6. Step 6: Final answer
    x = 38,371.68

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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.