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Finding the Fourth Proportional to 70,891.32, 97,829.97 and 39,060.22

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Solution

The fourth proportional to 70,891.32, 97,829.97 and 39,060.22 is: 53,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,891.32 : 97,829.97 = 39,060.22 : x
  2. Step 2: Convert to fraction form
    70,891.32/97,829.97 = 39,060.22/x
  3. Step 3: Cross multiply
    70,891.32x = 97,829.97 × 39,060.22
  4. Step 4: Simplify right side
    70,891.32x = 3,821,260,150.79
  5. Step 5: Solve for x
    x = 3,821,260,150.79/70,891.32
  6. Step 6: Final answer
    x = 53,903.08

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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.