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Finding the Fourth Proportional to 7,403.90, 11,064.90 and 6,632.98

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Solution

The fourth proportional to 7,403.90, 11,064.90 and 6,632.98 is: 9,912.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,403.90 : 11,064.90 = 6,632.98 : x
  2. Step 2: Convert to fraction form
    7,403.90/11,064.90 = 6,632.98/x
  3. Step 3: Cross multiply
    7,403.90x = 11,064.90 × 6,632.98
  4. Step 4: Simplify right side
    7,403.90x = 73,393,227.24
  5. Step 5: Solve for x
    x = 73,393,227.24/7,403.90
  6. Step 6: Final answer
    x = 9,912.78

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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.