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Finding the Fourth Proportional to 5,810.57, 8,716.47 and 1,860.41

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Solution

The fourth proportional to 5,810.57, 8,716.47 and 1,860.41 is: 2,790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.57 : 8,716.47 = 1,860.41 : x
  2. Step 2: Convert to fraction form
    5,810.57/8,716.47 = 1,860.41/x
  3. Step 3: Cross multiply
    5,810.57x = 8,716.47 × 1,860.41
  4. Step 4: Simplify right side
    5,810.57x = 16,216,242.96
  5. Step 5: Solve for x
    x = 16,216,242.96/5,810.57
  6. Step 6: Final answer
    x = 2,790.82

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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.