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Finding the Fourth Proportional to 8,324.64, 11,490.12 and 4,788.18

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Solution

The fourth proportional to 8,324.64, 11,490.12 and 4,788.18 is: 6,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.64 : 11,490.12 = 4,788.18 : x
  2. Step 2: Convert to fraction form
    8,324.64/11,490.12 = 4,788.18/x
  3. Step 3: Cross multiply
    8,324.64x = 11,490.12 × 4,788.18
  4. Step 4: Simplify right side
    8,324.64x = 55,016,762.78
  5. Step 5: Solve for x
    x = 55,016,762.78/8,324.64
  6. Step 6: Final answer
    x = 6,608.91

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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.