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Finding the Fourth Proportional to 51,356.66, 70,867.78 and 29,553.64

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Solution

The fourth proportional to 51,356.66, 70,867.78 and 29,553.64 is: 40,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,356.66 : 70,867.78 = 29,553.64 : x
  2. Step 2: Convert to fraction form
    51,356.66/70,867.78 = 29,553.64/x
  3. Step 3: Cross multiply
    51,356.66x = 70,867.78 × 29,553.64
  4. Step 4: Simplify right side
    51,356.66x = 2,094,400,857.72
  5. Step 5: Solve for x
    x = 2,094,400,857.72/51,356.66
  6. Step 6: Final answer
    x = 40,781.48

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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.