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Finding the Fourth Proportional to 9,369.69, 12,921.38 and 6,013.56

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Solution

The fourth proportional to 9,369.69, 12,921.38 and 6,013.56 is: 8,293.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369.69 : 12,921.38 = 6,013.56 : x
  2. Step 2: Convert to fraction form
    9,369.69/12,921.38 = 6,013.56/x
  3. Step 3: Cross multiply
    9,369.69x = 12,921.38 × 6,013.56
  4. Step 4: Simplify right side
    9,369.69x = 77,703,463.85
  5. Step 5: Solve for x
    x = 77,703,463.85/9,369.69
  6. Step 6: Final answer
    x = 8,293.07

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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.