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Finding the Fourth Proportional to 11,672.36, 16,095.08 and 7,888.97

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Solution

The fourth proportional to 11,672.36, 16,095.08 and 7,888.97 is: 10,878.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.36 : 16,095.08 = 7,888.97 : x
  2. Step 2: Convert to fraction form
    11,672.36/16,095.08 = 7,888.97/x
  3. Step 3: Cross multiply
    11,672.36x = 16,095.08 × 7,888.97
  4. Step 4: Simplify right side
    11,672.36x = 126,973,603.27
  5. Step 5: Solve for x
    x = 126,973,603.27/11,672.36
  6. Step 6: Final answer
    x = 10,878.14

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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.