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Finding the Fourth Proportional to 9,636, 14,458.68 and 4,439.04

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Solution

The fourth proportional to 9,636, 14,458.68 and 4,439.04 is: 6,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,636 : 14,458.68 = 4,439.04 : x
  2. Step 2: Convert to fraction form
    9,636/14,458.68 = 4,439.04/x
  3. Step 3: Cross multiply
    9,636x = 14,458.68 × 4,439.04
  4. Step 4: Simplify right side
    9,636x = 64,182,658.87
  5. Step 5: Solve for x
    x = 64,182,658.87/9,636
  6. Step 6: Final answer
    x = 6,660.72

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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.