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Finding the Fourth Proportional to 22,975.80, 34,455.60 and 8,185.20

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Solution

The fourth proportional to 22,975.80, 34,455.60 and 8,185.20 is: 12,274.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,975.80 : 34,455.60 = 8,185.20 : x
  2. Step 2: Convert to fraction form
    22,975.80/34,455.60 = 8,185.20/x
  3. Step 3: Cross multiply
    22,975.80x = 34,455.60 × 8,185.20
  4. Step 4: Simplify right side
    22,975.80x = 282,025,977.12
  5. Step 5: Solve for x
    x = 282,025,977.12/22,975.80
  6. Step 6: Final answer
    x = 12,274.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.