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Finding the Fourth Proportional to 70,546.70, 97,355.61 and 38,718.56

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Solution

The fourth proportional to 70,546.70, 97,355.61 and 38,718.56 is: 53,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,546.70 : 97,355.61 = 38,718.56 : x
  2. Step 2: Convert to fraction form
    70,546.70/97,355.61 = 38,718.56/x
  3. Step 3: Cross multiply
    70,546.70x = 97,355.61 × 38,718.56
  4. Step 4: Simplify right side
    70,546.70x = 3,769,468,540.34
  5. Step 5: Solve for x
    x = 3,769,468,540.34/70,546.70
  6. Step 6: Final answer
    x = 53,432.25

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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.