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Finding the Fourth Proportional to 15,054.88, 20,776.08 and 8,764.96

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Solution

The fourth proportional to 15,054.88, 20,776.08 and 8,764.96 is: 12,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.88 : 20,776.08 = 8,764.96 : x
  2. Step 2: Convert to fraction form
    15,054.88/20,776.08 = 8,764.96/x
  3. Step 3: Cross multiply
    15,054.88x = 20,776.08 × 8,764.96
  4. Step 4: Simplify right side
    15,054.88x = 182,101,510.16
  5. Step 5: Solve for x
    x = 182,101,510.16/15,054.88
  6. Step 6: Final answer
    x = 12,095.85

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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.