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Finding the Fourth Proportional to 9,999.72, 14,988.06 and 5,373

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Solution

The fourth proportional to 9,999.72, 14,988.06 and 5,373 is: 8,053.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.72 : 14,988.06 = 5,373 : x
  2. Step 2: Convert to fraction form
    9,999.72/14,988.06 = 5,373/x
  3. Step 3: Cross multiply
    9,999.72x = 14,988.06 × 5,373
  4. Step 4: Simplify right side
    9,999.72x = 80,530,846.38
  5. Step 5: Solve for x
    x = 80,530,846.38/9,999.72
  6. Step 6: Final answer
    x = 8,053.31

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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.