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Finding the Fourth Proportional to 7,192.86, 9,924.91 and 6,611.53

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Solution

The fourth proportional to 7,192.86, 9,924.91 and 6,611.53 is: 9,122.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.86 : 9,924.91 = 6,611.53 : x
  2. Step 2: Convert to fraction form
    7,192.86/9,924.91 = 6,611.53/x
  3. Step 3: Cross multiply
    7,192.86x = 9,924.91 × 6,611.53
  4. Step 4: Simplify right side
    7,192.86x = 65,618,790.59
  5. Step 5: Solve for x
    x = 65,618,790.59/7,192.86
  6. Step 6: Final answer
    x = 9,122.77

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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.