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Finding the Fourth Proportional to 67,803.31, 101,693.35 and 17,883.90

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Solution

The fourth proportional to 67,803.31, 101,693.35 and 17,883.90 is: 26,822.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,803.31 : 101,693.35 = 17,883.90 : x
  2. Step 2: Convert to fraction form
    67,803.31/101,693.35 = 17,883.90/x
  3. Step 3: Cross multiply
    67,803.31x = 101,693.35 × 17,883.90
  4. Step 4: Simplify right side
    67,803.31x = 1,818,673,388.11
  5. Step 5: Solve for x
    x = 1,818,673,388.11/67,803.31
  6. Step 6: Final answer
    x = 26,822.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.