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Finding the Fourth Proportional to 7,365.55, 11,048.44 and 6,991.71

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Solution

The fourth proportional to 7,365.55, 11,048.44 and 6,991.71 is: 10,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,365.55 : 11,048.44 = 6,991.71 : x
  2. Step 2: Convert to fraction form
    7,365.55/11,048.44 = 6,991.71/x
  3. Step 3: Cross multiply
    7,365.55x = 11,048.44 × 6,991.71
  4. Step 4: Simplify right side
    7,365.55x = 77,247,493.37
  5. Step 5: Solve for x
    x = 77,247,493.37/7,365.55
  6. Step 6: Final answer
    x = 10,487.68

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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.