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Finding the Fourth Proportional to 21,633.48, 32,406.48 and 9,933.84

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Solution

The fourth proportional to 21,633.48, 32,406.48 and 9,933.84 is: 14,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,633.48 : 32,406.48 = 9,933.84 : x
  2. Step 2: Convert to fraction form
    21,633.48/32,406.48 = 9,933.84/x
  3. Step 3: Cross multiply
    21,633.48x = 32,406.48 × 9,933.84
  4. Step 4: Simplify right side
    21,633.48x = 321,920,787.28
  5. Step 5: Solve for x
    x = 321,920,787.28/21,633.48
  6. Step 6: Final answer
    x = 14,880.68

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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.