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Finding the Fourth Proportional to 24,879.66, 34,309.49 and 21,113.16

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Solution

The fourth proportional to 24,879.66, 34,309.49 and 21,113.16 is: 29,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,879.66 : 34,309.49 = 21,113.16 : x
  2. Step 2: Convert to fraction form
    24,879.66/34,309.49 = 21,113.16/x
  3. Step 3: Cross multiply
    24,879.66x = 34,309.49 × 21,113.16
  4. Step 4: Simplify right side
    24,879.66x = 724,381,646.32
  5. Step 5: Solve for x
    x = 724,381,646.32/24,879.66
  6. Step 6: Final answer
    x = 29,115.42

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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.