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Finding the Fourth Proportional to 7,646.65, 11,470.20 and 2,100.04

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Solution

The fourth proportional to 7,646.65, 11,470.20 and 2,100.04 is: 3,150.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,646.65 : 11,470.20 = 2,100.04 : x
  2. Step 2: Convert to fraction form
    7,646.65/11,470.20 = 2,100.04/x
  3. Step 3: Cross multiply
    7,646.65x = 11,470.20 × 2,100.04
  4. Step 4: Simplify right side
    7,646.65x = 24,087,885.27
  5. Step 5: Solve for x
    x = 24,087,885.27/7,646.65
  6. Step 6: Final answer
    x = 3,150.12

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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.