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Finding the Fourth Proportional to 65,518.88, 98,278.31 and 16,270.88

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Solution

The fourth proportional to 65,518.88, 98,278.31 and 16,270.88 is: 24,406.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,518.88 : 98,278.31 = 16,270.88 : x
  2. Step 2: Convert to fraction form
    65,518.88/98,278.31 = 16,270.88/x
  3. Step 3: Cross multiply
    65,518.88x = 98,278.31 × 16,270.88
  4. Step 4: Simplify right side
    65,518.88x = 1,599,074,137.90
  5. Step 5: Solve for x
    x = 1,599,074,137.90/65,518.88
  6. Step 6: Final answer
    x = 24,406.31

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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.