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Finding the Fourth Proportional to 24,425.32, 36,640.64 and 7,781.44

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Solution

The fourth proportional to 24,425.32, 36,640.64 and 7,781.44 is: 11,673.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,425.32 : 36,640.64 = 7,781.44 : x
  2. Step 2: Convert to fraction form
    24,425.32/36,640.64 = 7,781.44/x
  3. Step 3: Cross multiply
    24,425.32x = 36,640.64 × 7,781.44
  4. Step 4: Simplify right side
    24,425.32x = 285,116,941.72
  5. Step 5: Solve for x
    x = 285,116,941.72/24,425.32
  6. Step 6: Final answer
    x = 11,673.01

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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.