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Finding the Fourth Proportional to 4,744.80, 7,117.37 and 1,782.90

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Solution

The fourth proportional to 4,744.80, 7,117.37 and 1,782.90 is: 2,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,744.80 : 7,117.37 = 1,782.90 : x
  2. Step 2: Convert to fraction form
    4,744.80/7,117.37 = 1,782.90/x
  3. Step 3: Cross multiply
    4,744.80x = 7,117.37 × 1,782.90
  4. Step 4: Simplify right side
    4,744.80x = 12,689,550.06
  5. Step 5: Solve for x
    x = 12,689,550.06/4,744.80
  6. Step 6: Final answer
    x = 2,674.41

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