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Finding the Fourth Proportional to 70,380.96, 97,125.75 and 38,550.39

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Solution

The fourth proportional to 70,380.96, 97,125.75 and 38,550.39 is: 53,199.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,380.96 : 97,125.75 = 38,550.39 : x
  2. Step 2: Convert to fraction form
    70,380.96/97,125.75 = 38,550.39/x
  3. Step 3: Cross multiply
    70,380.96x = 97,125.75 × 38,550.39
  4. Step 4: Simplify right side
    70,380.96x = 3,744,235,541.54
  5. Step 5: Solve for x
    x = 3,744,235,541.54/70,380.96
  6. Step 6: Final answer
    x = 53,199.55

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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.