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Finding the Fourth Proportional to 32,990.28, 49,478.58 and 11,645.88

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Solution

The fourth proportional to 32,990.28, 49,478.58 and 11,645.88 is: 17,466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,990.28 : 49,478.58 = 11,645.88 : x
  2. Step 2: Convert to fraction form
    32,990.28/49,478.58 = 11,645.88/x
  3. Step 3: Cross multiply
    32,990.28x = 49,478.58 × 11,645.88
  4. Step 4: Simplify right side
    32,990.28x = 576,221,605.25
  5. Step 5: Solve for x
    x = 576,221,605.25/32,990.28
  6. Step 6: Final answer
    x = 17,466.41

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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.