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Finding the Fourth Proportional to 9,149.95, 12,619.24 and 7,258.54

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Solution

The fourth proportional to 9,149.95, 12,619.24 and 7,258.54 is: 10,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.95 : 12,619.24 = 7,258.54 : x
  2. Step 2: Convert to fraction form
    9,149.95/12,619.24 = 7,258.54/x
  3. Step 3: Cross multiply
    9,149.95x = 12,619.24 × 7,258.54
  4. Step 4: Simplify right side
    9,149.95x = 91,597,258.31
  5. Step 5: Solve for x
    x = 91,597,258.31/9,149.95
  6. Step 6: Final answer
    x = 10,010.68

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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.