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Finding the Fourth Proportional to 70,458.85, 97,232.70 and 38,627.20

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Solution

The fourth proportional to 70,458.85, 97,232.70 and 38,627.20 is: 53,305.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,458.85 : 97,232.70 = 38,627.20 : x
  2. Step 2: Convert to fraction form
    70,458.85/97,232.70 = 38,627.20/x
  3. Step 3: Cross multiply
    70,458.85x = 97,232.70 × 38,627.20
  4. Step 4: Simplify right side
    70,458.85x = 3,755,826,949.44
  5. Step 5: Solve for x
    x = 3,755,826,949.44/70,458.85
  6. Step 6: Final answer
    x = 53,305.25

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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.