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Finding the Fourth Proportional to 49,669, 68,557.80 and 29,540.14

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Solution

The fourth proportional to 49,669, 68,557.80 and 29,540.14 is: 40,774.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,669 : 68,557.80 = 29,540.14 : x
  2. Step 2: Convert to fraction form
    49,669/68,557.80 = 29,540.14/x
  3. Step 3: Cross multiply
    49,669x = 68,557.80 × 29,540.14
  4. Step 4: Simplify right side
    49,669x = 2,025,207,010.09
  5. Step 5: Solve for x
    x = 2,025,207,010.09/49,669
  6. Step 6: Final answer
    x = 40,774.06

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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.