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Finding the Fourth Proportional to 2,762.50, 3,812.20 and 1,567.48

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Solution

The fourth proportional to 2,762.50, 3,812.20 and 1,567.48 is: 2,163.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.50 : 3,812.20 = 1,567.48 : x
  2. Step 2: Convert to fraction form
    2,762.50/3,812.20 = 1,567.48/x
  3. Step 3: Cross multiply
    2,762.50x = 3,812.20 × 1,567.48
  4. Step 4: Simplify right side
    2,762.50x = 5,975,547.26
  5. Step 5: Solve for x
    x = 5,975,547.26/2,762.50
  6. Step 6: Final answer
    x = 2,163.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.