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Finding the Fourth Proportional to 17,698.80, 26,549.16 and 4,551.28

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Solution

The fourth proportional to 17,698.80, 26,549.16 and 4,551.28 is: 6,827.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,698.80 : 26,549.16 = 4,551.28 : x
  2. Step 2: Convert to fraction form
    17,698.80/26,549.16 = 4,551.28/x
  3. Step 3: Cross multiply
    17,698.80x = 26,549.16 × 4,551.28
  4. Step 4: Simplify right side
    17,698.80x = 120,832,660.92
  5. Step 5: Solve for x
    x = 120,832,660.92/17,698.80
  6. Step 6: Final answer
    x = 6,827.17

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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.