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Finding the Fourth Proportional to 10,335.75, 15,503.63 and 3,410.79

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Solution

The fourth proportional to 10,335.75, 15,503.63 and 3,410.79 is: 5,116.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,335.75 : 15,503.63 = 3,410.79 : x
  2. Step 2: Convert to fraction form
    10,335.75/15,503.63 = 3,410.79/x
  3. Step 3: Cross multiply
    10,335.75x = 15,503.63 × 3,410.79
  4. Step 4: Simplify right side
    10,335.75x = 52,879,609.11
  5. Step 5: Solve for x
    x = 52,879,609.11/10,335.75
  6. Step 6: Final answer
    x = 5,116.19

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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.