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Finding the Fourth Proportional to 69,843.66, 96,383.97 and 38,012.55

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Solution

The fourth proportional to 69,843.66, 96,383.97 and 38,012.55 is: 52,457.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,843.66 : 96,383.97 = 38,012.55 : x
  2. Step 2: Convert to fraction form
    69,843.66/96,383.97 = 38,012.55/x
  3. Step 3: Cross multiply
    69,843.66x = 96,383.97 × 38,012.55
  4. Step 4: Simplify right side
    69,843.66x = 3,663,800,478.82
  5. Step 5: Solve for x
    x = 3,663,800,478.82/69,843.66
  6. Step 6: Final answer
    x = 52,457.17

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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.