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Finding the Fourth Proportional to 10,713.66, 14,786.72 and 6,736.96

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Solution

The fourth proportional to 10,713.66, 14,786.72 and 6,736.96 is: 9,298.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,713.66 : 14,786.72 = 6,736.96 : x
  2. Step 2: Convert to fraction form
    10,713.66/14,786.72 = 6,736.96/x
  3. Step 3: Cross multiply
    10,713.66x = 14,786.72 × 6,736.96
  4. Step 4: Simplify right side
    10,713.66x = 99,617,541.17
  5. Step 5: Solve for x
    x = 99,617,541.17/10,713.66
  6. Step 6: Final answer
    x = 9,298.18

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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.