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Finding the Fourth Proportional to 8,754.76, 13,127.27 and 2,908.18

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Solution

The fourth proportional to 8,754.76, 13,127.27 and 2,908.18 is: 4,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.76 : 13,127.27 = 2,908.18 : x
  2. Step 2: Convert to fraction form
    8,754.76/13,127.27 = 2,908.18/x
  3. Step 3: Cross multiply
    8,754.76x = 13,127.27 × 2,908.18
  4. Step 4: Simplify right side
    8,754.76x = 38,176,464.07
  5. Step 5: Solve for x
    x = 38,176,464.07/8,754.76
  6. Step 6: Final answer
    x = 4,360.65

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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.