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Finding the Fourth Proportional to 6,614.64, 9,904.19 and 3,488.14

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Solution

The fourth proportional to 6,614.64, 9,904.19 and 3,488.14 is: 5,222.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,614.64 : 9,904.19 = 3,488.14 : x
  2. Step 2: Convert to fraction form
    6,614.64/9,904.19 = 3,488.14/x
  3. Step 3: Cross multiply
    6,614.64x = 9,904.19 × 3,488.14
  4. Step 4: Simplify right side
    6,614.64x = 34,547,173.30
  5. Step 5: Solve for x
    x = 34,547,173.30/6,614.64
  6. Step 6: Final answer
    x = 5,222.84

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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.