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Finding the Fourth Proportional to 83,696.54, 115,508.35 and 47,404.44

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Solution

The fourth proportional to 83,696.54, 115,508.35 and 47,404.44 is: 65,422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,696.54 : 115,508.35 = 47,404.44 : x
  2. Step 2: Convert to fraction form
    83,696.54/115,508.35 = 47,404.44/x
  3. Step 3: Cross multiply
    83,696.54x = 115,508.35 × 47,404.44
  4. Step 4: Simplify right side
    83,696.54x = 5,475,608,647.07
  5. Step 5: Solve for x
    x = 5,475,608,647.07/83,696.54
  6. Step 6: Final answer
    x = 65,422.16

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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.