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Finding the Fourth Proportional to 7,905.89, 10,910.03 and 4,369.16

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Solution

The fourth proportional to 7,905.89, 10,910.03 and 4,369.16 is: 6,029.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.89 : 10,910.03 = 4,369.16 : x
  2. Step 2: Convert to fraction form
    7,905.89/10,910.03 = 4,369.16/x
  3. Step 3: Cross multiply
    7,905.89x = 10,910.03 × 4,369.16
  4. Step 4: Simplify right side
    7,905.89x = 47,667,672.10
  5. Step 5: Solve for x
    x = 47,667,672.10/7,905.89
  6. Step 6: Final answer
    x = 6,029.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.