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Finding the Fourth Proportional to 48,646, 67,131.48 and 26,290

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Solution

The fourth proportional to 48,646, 67,131.48 and 26,290 is: 36,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,646 : 67,131.48 = 26,290 : x
  2. Step 2: Convert to fraction form
    48,646/67,131.48 = 26,290/x
  3. Step 3: Cross multiply
    48,646x = 67,131.48 × 26,290
  4. Step 4: Simplify right side
    48,646x = 1,764,886,609.20
  5. Step 5: Solve for x
    x = 1,764,886,609.20/48,646
  6. Step 6: Final answer
    x = 36,280.20

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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.