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Finding the Fourth Proportional to 21,642.44, 32,463.68 and 11,800.94

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Solution

The fourth proportional to 21,642.44, 32,463.68 and 11,800.94 is: 17,701.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,642.44 : 32,463.68 = 11,800.94 : x
  2. Step 2: Convert to fraction form
    21,642.44/32,463.68 = 11,800.94/x
  3. Step 3: Cross multiply
    21,642.44x = 32,463.68 × 11,800.94
  4. Step 4: Simplify right side
    21,642.44x = 383,101,718.54
  5. Step 5: Solve for x
    x = 383,101,718.54/21,642.44
  6. Step 6: Final answer
    x = 17,701.41

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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.