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Finding the Fourth Proportional to 7,640.16, 10,548.18 and 5,868.24

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Solution

The fourth proportional to 7,640.16, 10,548.18 and 5,868.24 is: 8,101.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.16 : 10,548.18 = 5,868.24 : x
  2. Step 2: Convert to fraction form
    7,640.16/10,548.18 = 5,868.24/x
  3. Step 3: Cross multiply
    7,640.16x = 10,548.18 × 5,868.24
  4. Step 4: Simplify right side
    7,640.16x = 61,899,251.80
  5. Step 5: Solve for x
    x = 61,899,251.80/7,640.16
  6. Step 6: Final answer
    x = 8,101.83

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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.