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Finding the Fourth Proportional to 49,490, 68,296.56 and 27,134

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Solution

The fourth proportional to 49,490, 68,296.56 and 27,134 is: 37,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,490 : 68,296.56 = 27,134 : x
  2. Step 2: Convert to fraction form
    49,490/68,296.56 = 27,134/x
  3. Step 3: Cross multiply
    49,490x = 68,296.56 × 27,134
  4. Step 4: Simplify right side
    49,490x = 1,853,158,859.04
  5. Step 5: Solve for x
    x = 1,853,158,859.04/49,490
  6. Step 6: Final answer
    x = 37,445.12

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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.