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Finding the Fourth Proportional to 7,572.42, 11,348.16 and 3,866.84

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Solution

The fourth proportional to 7,572.42, 11,348.16 and 3,866.84 is: 5,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.42 : 11,348.16 = 3,866.84 : x
  2. Step 2: Convert to fraction form
    7,572.42/11,348.16 = 3,866.84/x
  3. Step 3: Cross multiply
    7,572.42x = 11,348.16 × 3,866.84
  4. Step 4: Simplify right side
    7,572.42x = 43,881,519.01
  5. Step 5: Solve for x
    x = 43,881,519.01/7,572.42
  6. Step 6: Final answer
    x = 5,794.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.