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Finding the Fourth Proportional to 48,745, 67,268.11 and 26,389

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Solution

The fourth proportional to 48,745, 67,268.11 and 26,389 is: 36,416.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,745 : 67,268.11 = 26,389 : x
  2. Step 2: Convert to fraction form
    48,745/67,268.11 = 26,389/x
  3. Step 3: Cross multiply
    48,745x = 67,268.11 × 26,389
  4. Step 4: Simplify right side
    48,745x = 1,775,138,154.79
  5. Step 5: Solve for x
    x = 1,775,138,154.79/48,745
  6. Step 6: Final answer
    x = 36,416.83

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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.