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Finding the Fourth Proportional to 71,064.70, 98,067.70 and 38,798.22

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Solution

The fourth proportional to 71,064.70, 98,067.70 and 38,798.22 is: 53,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,064.70 : 98,067.70 = 38,798.22 : x
  2. Step 2: Convert to fraction form
    71,064.70/98,067.70 = 38,798.22/x
  3. Step 3: Cross multiply
    71,064.70x = 98,067.70 × 38,798.22
  4. Step 4: Simplify right side
    71,064.70x = 3,804,852,199.49
  5. Step 5: Solve for x
    x = 3,804,852,199.49/71,064.70
  6. Step 6: Final answer
    x = 53,540.68

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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.