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Finding the Fourth Proportional to 8,358.78, 11,535.84 and 4,823.16

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Solution

The fourth proportional to 8,358.78, 11,535.84 and 4,823.16 is: 6,656.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.78 : 11,535.84 = 4,823.16 : x
  2. Step 2: Convert to fraction form
    8,358.78/11,535.84 = 4,823.16/x
  3. Step 3: Cross multiply
    8,358.78x = 11,535.84 × 4,823.16
  4. Step 4: Simplify right side
    8,358.78x = 55,639,202.05
  5. Step 5: Solve for x
    x = 55,639,202.05/8,358.78
  6. Step 6: Final answer
    x = 6,656.38

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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.