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Finding the Fourth Proportional to 10,335.99, 15,503.99 and 4,489.41

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Solution

The fourth proportional to 10,335.99, 15,503.99 and 4,489.41 is: 6,734.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,335.99 : 15,503.99 = 4,489.41 : x
  2. Step 2: Convert to fraction form
    10,335.99/15,503.99 = 4,489.41/x
  3. Step 3: Cross multiply
    10,335.99x = 15,503.99 × 4,489.41
  4. Step 4: Simplify right side
    10,335.99x = 69,603,767.75
  5. Step 5: Solve for x
    x = 69,603,767.75/10,335.99
  6. Step 6: Final answer
    x = 6,734.12

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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.