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Finding the Fourth Proportional to 70,020.48, 96,629.04 and 38,189.28

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Solution

The fourth proportional to 70,020.48, 96,629.04 and 38,189.28 is: 52,701.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,020.48 : 96,629.04 = 38,189.28 : x
  2. Step 2: Convert to fraction form
    70,020.48/96,629.04 = 38,189.28/x
  3. Step 3: Cross multiply
    70,020.48x = 96,629.04 × 38,189.28
  4. Step 4: Simplify right side
    70,020.48x = 3,690,193,464.69
  5. Step 5: Solve for x
    x = 3,690,193,464.69/70,020.48
  6. Step 6: Final answer
    x = 52,701.63

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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.