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Finding the Fourth Proportional to 9,646.68, 14,470.86 and 2,721.24

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Solution

The fourth proportional to 9,646.68, 14,470.86 and 2,721.24 is: 4,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,646.68 : 14,470.86 = 2,721.24 : x
  2. Step 2: Convert to fraction form
    9,646.68/14,470.86 = 2,721.24/x
  3. Step 3: Cross multiply
    9,646.68x = 14,470.86 × 2,721.24
  4. Step 4: Simplify right side
    9,646.68x = 39,378,683.07
  5. Step 5: Solve for x
    x = 39,378,683.07/9,646.68
  6. Step 6: Final answer
    x = 4,082.10

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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.