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Finding the Fourth Proportional to 7,493.36, 11,233.86 and 2,990.86

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Solution

The fourth proportional to 7,493.36, 11,233.86 and 2,990.86 is: 4,483.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,493.36 : 11,233.86 = 2,990.86 : x
  2. Step 2: Convert to fraction form
    7,493.36/11,233.86 = 2,990.86/x
  3. Step 3: Cross multiply
    7,493.36x = 11,233.86 × 2,990.86
  4. Step 4: Simplify right side
    7,493.36x = 33,598,902.52
  5. Step 5: Solve for x
    x = 33,598,902.52/7,493.36
  6. Step 6: Final answer
    x = 4,483.82

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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.