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Finding the Fourth Proportional to 17,079.16, 25,622.70 and 6,691

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Solution

The fourth proportional to 17,079.16, 25,622.70 and 6,691 is: 10,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,079.16 : 25,622.70 = 6,691 : x
  2. Step 2: Convert to fraction form
    17,079.16/25,622.70 = 6,691/x
  3. Step 3: Cross multiply
    17,079.16x = 25,622.70 × 6,691
  4. Step 4: Simplify right side
    17,079.16x = 171,441,485.70
  5. Step 5: Solve for x
    x = 171,441,485.70/17,079.16
  6. Step 6: Final answer
    x = 10,038.05

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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.