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Finding the Fourth Proportional to 9,067.50, 12,523.05 and 6,242.40

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Solution

The fourth proportional to 9,067.50, 12,523.05 and 6,242.40 is: 8,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,067.50 : 12,523.05 = 6,242.40 : x
  2. Step 2: Convert to fraction form
    9,067.50/12,523.05 = 6,242.40/x
  3. Step 3: Cross multiply
    9,067.50x = 12,523.05 × 6,242.40
  4. Step 4: Simplify right side
    9,067.50x = 78,173,887.32
  5. Step 5: Solve for x
    x = 78,173,887.32/9,067.50
  6. Step 6: Final answer
    x = 8,621.33

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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.