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Finding the Fourth Proportional to 2,592.50, 3,887.60 and 743.19

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Solution

The fourth proportional to 2,592.50, 3,887.60 and 743.19 is: 1,114.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,592.50 : 3,887.60 = 743.19 : x
  2. Step 2: Convert to fraction form
    2,592.50/3,887.60 = 743.19/x
  3. Step 3: Cross multiply
    2,592.50x = 3,887.60 × 743.19
  4. Step 4: Simplify right side
    2,592.50x = 2,889,225.44
  5. Step 5: Solve for x
    x = 2,889,225.44/2,592.50
  6. Step 6: Final answer
    x = 1,114.46

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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.