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Finding the Fourth Proportional to 11,960.90, 17,864.80 and 10,833.48

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Solution

The fourth proportional to 11,960.90, 17,864.80 and 10,833.48 is: 16,180.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,960.90 : 17,864.80 = 10,833.48 : x
  2. Step 2: Convert to fraction form
    11,960.90/17,864.80 = 10,833.48/x
  3. Step 3: Cross multiply
    11,960.90x = 17,864.80 × 10,833.48
  4. Step 4: Simplify right side
    11,960.90x = 193,537,953.50
  5. Step 5: Solve for x
    x = 193,537,953.50/11,960.90
  6. Step 6: Final answer
    x = 16,180.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.