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Finding the Fourth Proportional to 11,025.64, 15,216.42 and 7,844.68

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Solution

The fourth proportional to 11,025.64, 15,216.42 and 7,844.68 is: 10,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,025.64 : 15,216.42 = 7,844.68 : x
  2. Step 2: Convert to fraction form
    11,025.64/15,216.42 = 7,844.68/x
  3. Step 3: Cross multiply
    11,025.64x = 15,216.42 × 7,844.68
  4. Step 4: Simplify right side
    11,025.64x = 119,367,945.65
  5. Step 5: Solve for x
    x = 119,367,945.65/11,025.64
  6. Step 6: Final answer
    x = 10,826.40

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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.