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Finding the Fourth Proportional to 7,581.99, 10,462.87 and 4,224.64

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Solution

The fourth proportional to 7,581.99, 10,462.87 and 4,224.64 is: 5,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.99 : 10,462.87 = 4,224.64 : x
  2. Step 2: Convert to fraction form
    7,581.99/10,462.87 = 4,224.64/x
  3. Step 3: Cross multiply
    7,581.99x = 10,462.87 × 4,224.64
  4. Step 4: Simplify right side
    7,581.99x = 44,201,859.12
  5. Step 5: Solve for x
    x = 44,201,859.12/7,581.99
  6. Step 6: Final answer
    x = 5,829.85

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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.