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Finding the Fourth Proportional to 70,331.92, 97,054.41 and 38,494.78

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Solution

The fourth proportional to 70,331.92, 97,054.41 and 38,494.78 is: 53,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,331.92 : 97,054.41 = 38,494.78 : x
  2. Step 2: Convert to fraction form
    70,331.92/97,054.41 = 38,494.78/x
  3. Step 3: Cross multiply
    70,331.92x = 97,054.41 × 38,494.78
  4. Step 4: Simplify right side
    70,331.92x = 3,736,088,160.98
  5. Step 5: Solve for x
    x = 3,736,088,160.98/70,331.92
  6. Step 6: Final answer
    x = 53,120.80

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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.