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Finding the Fourth Proportional to 7,393.62, 11,047.11 and 7,135.23

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Solution

The fourth proportional to 7,393.62, 11,047.11 and 7,135.23 is: 10,661.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,393.62 : 11,047.11 = 7,135.23 : x
  2. Step 2: Convert to fraction form
    7,393.62/11,047.11 = 7,135.23/x
  3. Step 3: Cross multiply
    7,393.62x = 11,047.11 × 7,135.23
  4. Step 4: Simplify right side
    7,393.62x = 78,823,670.69
  5. Step 5: Solve for x
    x = 78,823,670.69/7,393.62
  6. Step 6: Final answer
    x = 10,661.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.