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Finding the Fourth Proportional to 8,908.65, 13,362.69 and 3,714.39

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Solution

The fourth proportional to 8,908.65, 13,362.69 and 3,714.39 is: 5,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.65 : 13,362.69 = 3,714.39 : x
  2. Step 2: Convert to fraction form
    8,908.65/13,362.69 = 3,714.39/x
  3. Step 3: Cross multiply
    8,908.65x = 13,362.69 × 3,714.39
  4. Step 4: Simplify right side
    8,908.65x = 49,634,242.11
  5. Step 5: Solve for x
    x = 49,634,242.11/8,908.65
  6. Step 6: Final answer
    x = 5,571.47

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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.