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Finding the Fourth Proportional to 5,861.24, 8,780.24 and 3,083.72

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Solution

The fourth proportional to 5,861.24, 8,780.24 and 3,083.72 is: 4,619.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,861.24 : 8,780.24 = 3,083.72 : x
  2. Step 2: Convert to fraction form
    5,861.24/8,780.24 = 3,083.72/x
  3. Step 3: Cross multiply
    5,861.24x = 8,780.24 × 3,083.72
  4. Step 4: Simplify right side
    5,861.24x = 27,075,801.69
  5. Step 5: Solve for x
    x = 27,075,801.69/5,861.24
  6. Step 6: Final answer
    x = 4,619.47

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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.