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Finding the Fourth Proportional to 8,872, 13,308.02 and 2,716

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Solution

The fourth proportional to 8,872, 13,308.02 and 2,716 is: 4,074.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872 : 13,308.02 = 2,716 : x
  2. Step 2: Convert to fraction form
    8,872/13,308.02 = 2,716/x
  3. Step 3: Cross multiply
    8,872x = 13,308.02 × 2,716
  4. Step 4: Simplify right side
    8,872x = 36,144,582.32
  5. Step 5: Solve for x
    x = 36,144,582.32/8,872
  6. Step 6: Final answer
    x = 4,074.01

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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.