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Finding the Fourth Proportional to 7,772.09, 10,725.17 and 4,235.22

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Solution

The fourth proportional to 7,772.09, 10,725.17 and 4,235.22 is: 5,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.09 : 10,725.17 = 4,235.22 : x
  2. Step 2: Convert to fraction form
    7,772.09/10,725.17 = 4,235.22/x
  3. Step 3: Cross multiply
    7,772.09x = 10,725.17 × 4,235.22
  4. Step 4: Simplify right side
    7,772.09x = 45,423,433.31
  5. Step 5: Solve for x
    x = 45,423,433.31/7,772.09
  6. Step 6: Final answer
    x = 5,844.43

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Double scale
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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.