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Finding the Fourth Proportional to 8,825.62, 12,179.64 and 5,099.62

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Solution

The fourth proportional to 8,825.62, 12,179.64 and 5,099.62 is: 7,037.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,825.62 : 12,179.64 = 5,099.62 : x
  2. Step 2: Convert to fraction form
    8,825.62/12,179.64 = 5,099.62/x
  3. Step 3: Cross multiply
    8,825.62x = 12,179.64 × 5,099.62
  4. Step 4: Simplify right side
    8,825.62x = 62,111,535.74
  5. Step 5: Solve for x
    x = 62,111,535.74/8,825.62
  6. Step 6: Final answer
    x = 7,037.64

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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.