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Finding the Fourth Proportional to 7,672.54, 10,592.63 and 7,229.68

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Solution

The fourth proportional to 7,672.54, 10,592.63 and 7,229.68 is: 9,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.54 : 10,592.63 = 7,229.68 : x
  2. Step 2: Convert to fraction form
    7,672.54/10,592.63 = 7,229.68/x
  3. Step 3: Cross multiply
    7,672.54x = 10,592.63 × 7,229.68
  4. Step 4: Simplify right side
    7,672.54x = 76,581,325.26
  5. Step 5: Solve for x
    x = 76,581,325.26/7,672.54
  6. Step 6: Final answer
    x = 9,981.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.