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Finding the Fourth Proportional to 70,020.99, 96,627.94 and 38,189.81

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Solution

The fourth proportional to 70,020.99, 96,627.94 and 38,189.81 is: 52,701.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,020.99 : 96,627.94 = 38,189.81 : x
  2. Step 2: Convert to fraction form
    70,020.99/96,627.94 = 38,189.81/x
  3. Step 3: Cross multiply
    70,020.99x = 96,627.94 × 38,189.81
  4. Step 4: Simplify right side
    70,020.99x = 3,690,202,815.39
  5. Step 5: Solve for x
    x = 3,690,202,815.39/70,020.99
  6. Step 6: Final answer
    x = 52,701.38

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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.