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Finding the Fourth Proportional to 9,166.54, 12,649.84 and 4,974.79

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Solution

The fourth proportional to 9,166.54, 12,649.84 and 4,974.79 is: 6,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,166.54 : 12,649.84 = 4,974.79 : x
  2. Step 2: Convert to fraction form
    9,166.54/12,649.84 = 4,974.79/x
  3. Step 3: Cross multiply
    9,166.54x = 12,649.84 × 4,974.79
  4. Step 4: Simplify right side
    9,166.54x = 62,930,285.10
  5. Step 5: Solve for x
    x = 62,930,285.10/9,166.54
  6. Step 6: Final answer
    x = 6,865.22

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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.