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Finding the Fourth Proportional to 7,906.19, 10,911.24 and 4,370.09

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Solution

The fourth proportional to 7,906.19, 10,911.24 and 4,370.09 is: 6,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.19 : 10,911.24 = 4,370.09 : x
  2. Step 2: Convert to fraction form
    7,906.19/10,911.24 = 4,370.09/x
  3. Step 3: Cross multiply
    7,906.19x = 10,911.24 × 4,370.09
  4. Step 4: Simplify right side
    7,906.19x = 47,683,078.96
  5. Step 5: Solve for x
    x = 47,683,078.96/7,906.19
  6. Step 6: Final answer
    x = 6,031.11

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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.