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Finding the Fourth Proportional to 29,595.97, 40,836.92 and 18,275.21

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Solution

The fourth proportional to 29,595.97, 40,836.92 and 18,275.21 is: 25,216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,595.97 : 40,836.92 = 18,275.21 : x
  2. Step 2: Convert to fraction form
    29,595.97/40,836.92 = 18,275.21/x
  3. Step 3: Cross multiply
    29,595.97x = 40,836.92 × 18,275.21
  4. Step 4: Simplify right side
    29,595.97x = 746,303,288.75
  5. Step 5: Solve for x
    x = 746,303,288.75/29,595.97
  6. Step 6: Final answer
    x = 25,216.38

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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.