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Finding the Fourth Proportional to 11,169.66, 15,413.07 and 6,692.58

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Solution

The fourth proportional to 11,169.66, 15,413.07 and 6,692.58 is: 9,235.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,169.66 : 15,413.07 = 6,692.58 : x
  2. Step 2: Convert to fraction form
    11,169.66/15,413.07 = 6,692.58/x
  3. Step 3: Cross multiply
    11,169.66x = 15,413.07 × 6,692.58
  4. Step 4: Simplify right side
    11,169.66x = 103,153,204.02
  5. Step 5: Solve for x
    x = 103,153,204.02/11,169.66
  6. Step 6: Final answer
    x = 9,235.12

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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.