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Finding the Fourth Proportional to 5,756.96, 8,633.64 and 1,860.50

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Solution

The fourth proportional to 5,756.96, 8,633.64 and 1,860.50 is: 2,790.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,756.96 : 8,633.64 = 1,860.50 : x
  2. Step 2: Convert to fraction form
    5,756.96/8,633.64 = 1,860.50/x
  3. Step 3: Cross multiply
    5,756.96x = 8,633.64 × 1,860.50
  4. Step 4: Simplify right side
    5,756.96x = 16,062,887.22
  5. Step 5: Solve for x
    x = 16,062,887.22/5,756.96
  6. Step 6: Final answer
    x = 2,790.17

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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.