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Finding the Fourth Proportional to 12,363, 17,061.30 and 6,774.36

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Solution

The fourth proportional to 12,363, 17,061.30 and 6,774.36 is: 9,348.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363 : 17,061.30 = 6,774.36 : x
  2. Step 2: Convert to fraction form
    12,363/17,061.30 = 6,774.36/x
  3. Step 3: Cross multiply
    12,363x = 17,061.30 × 6,774.36
  4. Step 4: Simplify right side
    12,363x = 115,579,388.27
  5. Step 5: Solve for x
    x = 115,579,388.27/12,363
  6. Step 6: Final answer
    x = 9,348.81

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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.