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Finding the Fourth Proportional to 24,965.20, 34,446.90 and 15,894.19

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Solution

The fourth proportional to 24,965.20, 34,446.90 and 15,894.19 is: 21,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,965.20 : 34,446.90 = 15,894.19 : x
  2. Step 2: Convert to fraction form
    24,965.20/34,446.90 = 15,894.19/x
  3. Step 3: Cross multiply
    24,965.20x = 34,446.90 × 15,894.19
  4. Step 4: Simplify right side
    24,965.20x = 547,505,573.51
  5. Step 5: Solve for x
    x = 547,505,573.51/24,965.20
  6. Step 6: Final answer
    x = 21,930.75

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Half scale
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Double scale
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Similar ratio
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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.