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Finding the Fourth Proportional to 2,406.90, 3,321 and 1,567.52

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Solution

The fourth proportional to 2,406.90, 3,321 and 1,567.52 is: 2,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.90 : 3,321 = 1,567.52 : x
  2. Step 2: Convert to fraction form
    2,406.90/3,321 = 1,567.52/x
  3. Step 3: Cross multiply
    2,406.90x = 3,321 × 1,567.52
  4. Step 4: Simplify right side
    2,406.90x = 5,205,717.32
  5. Step 5: Solve for x
    x = 5,205,717.32/2,406.90
  6. Step 6: Final answer
    x = 2,162.83

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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.