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Finding the Fourth Proportional to 7,562.22, 11,329.74 and 7,117.48

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Solution

The fourth proportional to 7,562.22, 11,329.74 and 7,117.48 is: 10,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,562.22 : 11,329.74 = 7,117.48 : x
  2. Step 2: Convert to fraction form
    7,562.22/11,329.74 = 7,117.48/x
  3. Step 3: Cross multiply
    7,562.22x = 11,329.74 × 7,117.48
  4. Step 4: Simplify right side
    7,562.22x = 80,639,197.86
  5. Step 5: Solve for x
    x = 80,639,197.86/7,562.22
  6. Step 6: Final answer
    x = 10,663.43

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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.