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Finding the Fourth Proportional to 10,530.03, 15,787.25 and 6,369.03

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Solution

The fourth proportional to 10,530.03, 15,787.25 and 6,369.03 is: 9,548.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.03 : 15,787.25 = 6,369.03 : x
  2. Step 2: Convert to fraction form
    10,530.03/15,787.25 = 6,369.03/x
  3. Step 3: Cross multiply
    10,530.03x = 15,787.25 × 6,369.03
  4. Step 4: Simplify right side
    10,530.03x = 100,549,496.73
  5. Step 5: Solve for x
    x = 100,549,496.73/10,530.03
  6. Step 6: Final answer
    x = 9,548.84

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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.