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Finding the Fourth Proportional to 11,523.92, 15,908.28 and 7,337.84

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Solution

The fourth proportional to 11,523.92, 15,908.28 and 7,337.84 is: 10,129.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,523.92 : 15,908.28 = 7,337.84 : x
  2. Step 2: Convert to fraction form
    11,523.92/15,908.28 = 7,337.84/x
  3. Step 3: Cross multiply
    11,523.92x = 15,908.28 × 7,337.84
  4. Step 4: Simplify right side
    11,523.92x = 116,732,413.32
  5. Step 5: Solve for x
    x = 116,732,413.32/11,523.92
  6. Step 6: Final answer
    x = 10,129.58

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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.