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Finding the Fourth Proportional to 7,465.92, 10,292.16 and 5,891.20

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Solution

The fourth proportional to 7,465.92, 10,292.16 and 5,891.20 is: 8,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,465.92 : 10,292.16 = 5,891.20 : x
  2. Step 2: Convert to fraction form
    7,465.92/10,292.16 = 5,891.20/x
  3. Step 3: Cross multiply
    7,465.92x = 10,292.16 × 5,891.20
  4. Step 4: Simplify right side
    7,465.92x = 60,633,172.99
  5. Step 5: Solve for x
    x = 60,633,172.99/7,465.92
  6. Step 6: Final answer
    x = 8,121.33

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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.