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Finding the Fourth Proportional to 12,488, 17,233.44 and 6,899

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Solution

The fourth proportional to 12,488, 17,233.44 and 6,899 is: 9,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488 : 17,233.44 = 6,899 : x
  2. Step 2: Convert to fraction form
    12,488/17,233.44 = 6,899/x
  3. Step 3: Cross multiply
    12,488x = 17,233.44 × 6,899
  4. Step 4: Simplify right side
    12,488x = 118,893,502.56
  5. Step 5: Solve for x
    x = 118,893,502.56/12,488
  6. Step 6: Final answer
    x = 9,520.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.