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Finding the Fourth Proportional to 9,166.74, 12,650.92 and 5,388.01

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Solution

The fourth proportional to 9,166.74, 12,650.92 and 5,388.01 is: 7,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,166.74 : 12,650.92 = 5,388.01 : x
  2. Step 2: Convert to fraction form
    9,166.74/12,650.92 = 5,388.01/x
  3. Step 3: Cross multiply
    9,166.74x = 12,650.92 × 5,388.01
  4. Step 4: Simplify right side
    9,166.74x = 68,163,283.47
  5. Step 5: Solve for x
    x = 68,163,283.47/9,166.74
  6. Step 6: Final answer
    x = 7,435.94

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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.