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Finding the Fourth Proportional to 11,697.79, 17,553.80 and 6,155.10

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Solution

The fourth proportional to 11,697.79, 17,553.80 and 6,155.10 is: 9,236.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,697.79 : 17,553.80 = 6,155.10 : x
  2. Step 2: Convert to fraction form
    11,697.79/17,553.80 = 6,155.10/x
  3. Step 3: Cross multiply
    11,697.79x = 17,553.80 × 6,155.10
  4. Step 4: Simplify right side
    11,697.79x = 108,045,394.38
  5. Step 5: Solve for x
    x = 108,045,394.38/11,697.79
  6. Step 6: Final answer
    x = 9,236.39

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1.5x scale

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.