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Finding the Fourth Proportional to 9,174.93, 12,661.07 and 4,983.09

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Solution

The fourth proportional to 9,174.93, 12,661.07 and 4,983.09 is: 6,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174.93 : 12,661.07 = 4,983.09 : x
  2. Step 2: Convert to fraction form
    9,174.93/12,661.07 = 4,983.09/x
  3. Step 3: Cross multiply
    9,174.93x = 12,661.07 × 4,983.09
  4. Step 4: Simplify right side
    9,174.93x = 63,091,226.39
  5. Step 5: Solve for x
    x = 63,091,226.39/9,174.93
  6. Step 6: Final answer
    x = 6,876.48

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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.