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Finding the Fourth Proportional to 1,848.12, 2,773.17 and 874.23

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Solution

The fourth proportional to 1,848.12, 2,773.17 and 874.23 is: 1,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848.12 : 2,773.17 = 874.23 : x
  2. Step 2: Convert to fraction form
    1,848.12/2,773.17 = 874.23/x
  3. Step 3: Cross multiply
    1,848.12x = 2,773.17 × 874.23
  4. Step 4: Simplify right side
    1,848.12x = 2,424,388.41
  5. Step 5: Solve for x
    x = 2,424,388.41/1,848.12
  6. Step 6: Final answer
    x = 1,311.81

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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.