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Finding the Fourth Proportional to 9,366.66, 12,924.88 and 5,174.66

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Solution

The fourth proportional to 9,366.66, 12,924.88 and 5,174.66 is: 7,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,366.66 : 12,924.88 = 5,174.66 : x
  2. Step 2: Convert to fraction form
    9,366.66/12,924.88 = 5,174.66/x
  3. Step 3: Cross multiply
    9,366.66x = 12,924.88 × 5,174.66
  4. Step 4: Simplify right side
    9,366.66x = 66,881,859.54
  5. Step 5: Solve for x
    x = 66,881,859.54/9,366.66
  6. Step 6: Final answer
    x = 7,140.42

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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.