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Finding the Fourth Proportional to 70,087.95, 96,719.83 and 38,257.38

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Solution

The fourth proportional to 70,087.95, 96,719.83 and 38,257.38 is: 52,794.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,087.95 : 96,719.83 = 38,257.38 : x
  2. Step 2: Convert to fraction form
    70,087.95/96,719.83 = 38,257.38/x
  3. Step 3: Cross multiply
    70,087.95x = 96,719.83 × 38,257.38
  4. Step 4: Simplify right side
    70,087.95x = 3,700,247,289.85
  5. Step 5: Solve for x
    x = 3,700,247,289.85/70,087.95
  6. Step 6: Final answer
    x = 52,794.34

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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.