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Finding the Fourth Proportional to 3,567.09, 4,922.55 and 1,995.15

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Solution

The fourth proportional to 3,567.09, 4,922.55 and 1,995.15 is: 2,753.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,567.09 : 4,922.55 = 1,995.15 : x
  2. Step 2: Convert to fraction form
    3,567.09/4,922.55 = 1,995.15/x
  3. Step 3: Cross multiply
    3,567.09x = 4,922.55 × 1,995.15
  4. Step 4: Simplify right side
    3,567.09x = 9,821,225.63
  5. Step 5: Solve for x
    x = 9,821,225.63/3,567.09
  6. Step 6: Final answer
    x = 2,753.29

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1.5x scale

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.