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Finding the Fourth Proportional to 11,107.94, 15,329.10 and 6,072.08

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Solution

The fourth proportional to 11,107.94, 15,329.10 and 6,072.08 is: 8,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.94 : 15,329.10 = 6,072.08 : x
  2. Step 2: Convert to fraction form
    11,107.94/15,329.10 = 6,072.08/x
  3. Step 3: Cross multiply
    11,107.94x = 15,329.10 × 6,072.08
  4. Step 4: Simplify right side
    11,107.94x = 93,079,521.53
  5. Step 5: Solve for x
    x = 93,079,521.53/11,107.94
  6. Step 6: Final answer
    x = 8,379.55

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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.