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Finding the Fourth Proportional to 6,554.60, 9,851.10 and 5,709.80

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Solution

The fourth proportional to 6,554.60, 9,851.10 and 5,709.80 is: 8,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,554.60 : 9,851.10 = 5,709.80 : x
  2. Step 2: Convert to fraction form
    6,554.60/9,851.10 = 5,709.80/x
  3. Step 3: Cross multiply
    6,554.60x = 9,851.10 × 5,709.80
  4. Step 4: Simplify right side
    6,554.60x = 56,247,810.78
  5. Step 5: Solve for x
    x = 56,247,810.78/6,554.60
  6. Step 6: Final answer
    x = 8,581.43

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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.