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Finding the Fourth Proportional to 8,556.57, 11,809.17 and 5,020.11

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Solution

The fourth proportional to 8,556.57, 11,809.17 and 5,020.11 is: 6,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.57 : 11,809.17 = 5,020.11 : x
  2. Step 2: Convert to fraction form
    8,556.57/11,809.17 = 5,020.11/x
  3. Step 3: Cross multiply
    8,556.57x = 11,809.17 × 5,020.11
  4. Step 4: Simplify right side
    8,556.57x = 59,283,332.41
  5. Step 5: Solve for x
    x = 59,283,332.41/8,556.57
  6. Step 6: Final answer
    x = 6,928.40

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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.