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Finding the Fourth Proportional to 29,595.80, 40,799.71 and 18,257.64

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Solution

The fourth proportional to 29,595.80, 40,799.71 and 18,257.64 is: 25,169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,595.80 : 40,799.71 = 18,257.64 : x
  2. Step 2: Convert to fraction form
    29,595.80/40,799.71 = 18,257.64/x
  3. Step 3: Cross multiply
    29,595.80x = 40,799.71 × 18,257.64
  4. Step 4: Simplify right side
    29,595.80x = 744,906,417.28
  5. Step 5: Solve for x
    x = 744,906,417.28/29,595.80
  6. Step 6: Final answer
    x = 25,169.33

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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.