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Finding the Fourth Proportional to 70,993.24, 97,971.06 and 39,162.13

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Solution

The fourth proportional to 70,993.24, 97,971.06 and 39,162.13 is: 54,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,993.24 : 97,971.06 = 39,162.13 : x
  2. Step 2: Convert to fraction form
    70,993.24/97,971.06 = 39,162.13/x
  3. Step 3: Cross multiply
    70,993.24x = 97,971.06 × 39,162.13
  4. Step 4: Simplify right side
    70,993.24x = 3,836,755,387.96
  5. Step 5: Solve for x
    x = 3,836,755,387.96/70,993.24
  6. Step 6: Final answer
    x = 54,043.95

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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.