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Finding the Fourth Proportional to 11,111.70, 16,662.15 and 6,176.10

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Solution

The fourth proportional to 11,111.70, 16,662.15 and 6,176.10 is: 9,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.70 : 16,662.15 = 6,176.10 : x
  2. Step 2: Convert to fraction form
    11,111.70/16,662.15 = 6,176.10/x
  3. Step 3: Cross multiply
    11,111.70x = 16,662.15 × 6,176.10
  4. Step 4: Simplify right side
    11,111.70x = 102,907,104.62
  5. Step 5: Solve for x
    x = 102,907,104.62/11,111.70
  6. Step 6: Final answer
    x = 9,261.15

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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.