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Finding the Fourth Proportional to 84,894.70, 127,309.65 and 25,710.70

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Solution

The fourth proportional to 84,894.70, 127,309.65 and 25,710.70 is: 38,556.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,894.70 : 127,309.65 = 25,710.70 : x
  2. Step 2: Convert to fraction form
    84,894.70/127,309.65 = 25,710.70/x
  3. Step 3: Cross multiply
    84,894.70x = 127,309.65 × 25,710.70
  4. Step 4: Simplify right side
    84,894.70x = 3,273,220,218.26
  5. Step 5: Solve for x
    x = 3,273,220,218.26/84,894.70
  6. Step 6: Final answer
    x = 38,556.24

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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.