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Finding the Fourth Proportional to 12,616.76, 18,927.20 and 4,295.93

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Solution

The fourth proportional to 12,616.76, 18,927.20 and 4,295.93 is: 6,444.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,616.76 : 18,927.20 = 4,295.93 : x
  2. Step 2: Convert to fraction form
    12,616.76/18,927.20 = 4,295.93/x
  3. Step 3: Cross multiply
    12,616.76x = 18,927.20 × 4,295.93
  4. Step 4: Simplify right side
    12,616.76x = 81,309,842.40
  5. Step 5: Solve for x
    x = 81,309,842.40/12,616.76
  6. Step 6: Final answer
    x = 6,444.59

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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.