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Finding the Fourth Proportional to 65,912.77, 98,886.03 and 19,165.66

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Solution

The fourth proportional to 65,912.77, 98,886.03 and 19,165.66 is: 28,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,912.77 : 98,886.03 = 19,165.66 : x
  2. Step 2: Convert to fraction form
    65,912.77/98,886.03 = 19,165.66/x
  3. Step 3: Cross multiply
    65,912.77x = 98,886.03 × 19,165.66
  4. Step 4: Simplify right side
    65,912.77x = 1,895,216,029.73
  5. Step 5: Solve for x
    x = 1,895,216,029.73/65,912.77
  6. Step 6: Final answer
    x = 28,753.40

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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.