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Finding the Fourth Proportional to 70,025.78, 96,636.88 and 38,195.82

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Solution

The fourth proportional to 70,025.78, 96,636.88 and 38,195.82 is: 52,710.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,025.78 : 96,636.88 = 38,195.82 : x
  2. Step 2: Convert to fraction form
    70,025.78/96,636.88 = 38,195.82/x
  3. Step 3: Cross multiply
    70,025.78x = 96,636.88 × 38,195.82
  4. Step 4: Simplify right side
    70,025.78x = 3,691,124,873.84
  5. Step 5: Solve for x
    x = 3,691,124,873.84/70,025.78
  6. Step 6: Final answer
    x = 52,710.94

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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.