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Finding the Fourth Proportional to 8,238.42, 11,368.98 and 4,512.42

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Solution

The fourth proportional to 8,238.42, 11,368.98 and 4,512.42 is: 6,227.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.42 : 11,368.98 = 4,512.42 : x
  2. Step 2: Convert to fraction form
    8,238.42/11,368.98 = 4,512.42/x
  3. Step 3: Cross multiply
    8,238.42x = 11,368.98 × 4,512.42
  4. Step 4: Simplify right side
    8,238.42x = 51,301,612.73
  5. Step 5: Solve for x
    x = 51,301,612.73/8,238.42
  6. Step 6: Final answer
    x = 6,227.12

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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.