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Finding the Fourth Proportional to 11,988.66, 17,934.81 and 10,362.66

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Solution

The fourth proportional to 11,988.66, 17,934.81 and 10,362.66 is: 15,502.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.66 : 17,934.81 = 10,362.66 : x
  2. Step 2: Convert to fraction form
    11,988.66/17,934.81 = 10,362.66/x
  3. Step 3: Cross multiply
    11,988.66x = 17,934.81 × 10,362.66
  4. Step 4: Simplify right side
    11,988.66x = 185,852,338.19
  5. Step 5: Solve for x
    x = 185,852,338.19/11,988.66
  6. Step 6: Final answer
    x = 15,502.34

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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.