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Finding the Fourth Proportional to 23,690.74, 35,524.22 and 7,890.21

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Solution

The fourth proportional to 23,690.74, 35,524.22 and 7,890.21 is: 11,831.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,690.74 : 35,524.22 = 7,890.21 : x
  2. Step 2: Convert to fraction form
    23,690.74/35,524.22 = 7,890.21/x
  3. Step 3: Cross multiply
    23,690.74x = 35,524.22 × 7,890.21
  4. Step 4: Simplify right side
    23,690.74x = 280,293,555.89
  5. Step 5: Solve for x
    x = 280,293,555.89/23,690.74
  6. Step 6: Final answer
    x = 11,831.36

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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.