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Finding the Fourth Proportional to 7,896.73, 10,897.71 and 4,311.91

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Solution

The fourth proportional to 7,896.73, 10,897.71 and 4,311.91 is: 5,950.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.73 : 10,897.71 = 4,311.91 : x
  2. Step 2: Convert to fraction form
    7,896.73/10,897.71 = 4,311.91/x
  3. Step 3: Cross multiply
    7,896.73x = 10,897.71 × 4,311.91
  4. Step 4: Simplify right side
    7,896.73x = 46,989,944.73
  5. Step 5: Solve for x
    x = 46,989,944.73/7,896.73
  6. Step 6: Final answer
    x = 5,950.56

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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.