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Finding the Fourth Proportional to 69,788.97, 96,309.69 and 39,573.63

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Solution

The fourth proportional to 69,788.97, 96,309.69 and 39,573.63 is: 54,612.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,788.97 : 96,309.69 = 39,573.63 : x
  2. Step 2: Convert to fraction form
    69,788.97/96,309.69 = 39,573.63/x
  3. Step 3: Cross multiply
    69,788.97x = 96,309.69 × 39,573.63
  4. Step 4: Simplify right side
    69,788.97x = 3,811,324,037.47
  5. Step 5: Solve for x
    x = 3,811,324,037.47/69,788.97
  6. Step 6: Final answer
    x = 54,612.13

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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.