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Finding the Fourth Proportional to 29,482.92, 40,659.39 and 21,948.30

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Solution

The fourth proportional to 29,482.92, 40,659.39 and 21,948.30 is: 30,268.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,482.92 : 40,659.39 = 21,948.30 : x
  2. Step 2: Convert to fraction form
    29,482.92/40,659.39 = 21,948.30/x
  3. Step 3: Cross multiply
    29,482.92x = 40,659.39 × 21,948.30
  4. Step 4: Simplify right side
    29,482.92x = 892,404,489.54
  5. Step 5: Solve for x
    x = 892,404,489.54/29,482.92
  6. Step 6: Final answer
    x = 30,268.52

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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.