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Finding the Fourth Proportional to 84,886.26, 127,315.26 and 25,707.87

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Solution

The fourth proportional to 84,886.26, 127,315.26 and 25,707.87 is: 38,557.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,886.26 : 127,315.26 = 25,707.87 : x
  2. Step 2: Convert to fraction form
    84,886.26/127,315.26 = 25,707.87/x
  3. Step 3: Cross multiply
    84,886.26x = 127,315.26 × 25,707.87
  4. Step 4: Simplify right side
    84,886.26x = 3,273,004,153.10
  5. Step 5: Solve for x
    x = 3,273,004,153.10/84,886.26
  6. Step 6: Final answer
    x = 38,557.53

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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.