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Finding the Fourth Proportional to 11,472.92, 15,832.64 and 6,696.14

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Solution

The fourth proportional to 11,472.92, 15,832.64 and 6,696.14 is: 9,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,472.92 : 15,832.64 = 6,696.14 : x
  2. Step 2: Convert to fraction form
    11,472.92/15,832.64 = 6,696.14/x
  3. Step 3: Cross multiply
    11,472.92x = 15,832.64 × 6,696.14
  4. Step 4: Simplify right side
    11,472.92x = 106,017,574.01
  5. Step 5: Solve for x
    x = 106,017,574.01/11,472.92
  6. Step 6: Final answer
    x = 9,240.68

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1.5x scale

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.