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Finding the Fourth Proportional to 70,007.68, 96,610.62 and 38,175.76

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Solution

The fourth proportional to 70,007.68, 96,610.62 and 38,175.76 is: 52,682.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,007.68 : 96,610.62 = 38,175.76 : x
  2. Step 2: Convert to fraction form
    70,007.68/96,610.62 = 38,175.76/x
  3. Step 3: Cross multiply
    70,007.68x = 96,610.62 × 38,175.76
  4. Step 4: Simplify right side
    70,007.68x = 3,688,183,842.57
  5. Step 5: Solve for x
    x = 3,688,183,842.57/70,007.68
  6. Step 6: Final answer
    x = 52,682.56

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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.