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Finding the Fourth Proportional to 7,957.85, 10,896.93 and 7,644.15

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Solution

The fourth proportional to 7,957.85, 10,896.93 and 7,644.15 is: 10,467.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.85 : 10,896.93 = 7,644.15 : x
  2. Step 2: Convert to fraction form
    7,957.85/10,896.93 = 7,644.15/x
  3. Step 3: Cross multiply
    7,957.85x = 10,896.93 × 7,644.15
  4. Step 4: Simplify right side
    7,957.85x = 83,297,767.46
  5. Step 5: Solve for x
    x = 83,297,767.46/7,957.85
  6. Step 6: Final answer
    x = 10,467.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.