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Finding the Fourth Proportional to 12,365.04, 17,063.72 and 6,776

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Solution

The fourth proportional to 12,365.04, 17,063.72 and 6,776 is: 9,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.04 : 17,063.72 = 6,776 : x
  2. Step 2: Convert to fraction form
    12,365.04/17,063.72 = 6,776/x
  3. Step 3: Cross multiply
    12,365.04x = 17,063.72 × 6,776
  4. Step 4: Simplify right side
    12,365.04x = 115,623,766.72
  5. Step 5: Solve for x
    x = 115,623,766.72/12,365.04
  6. Step 6: Final answer
    x = 9,350.86

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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.