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Finding the Fourth Proportional to 3,848.22, 5,310.53 and 2,079.82

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Solution

The fourth proportional to 3,848.22, 5,310.53 and 2,079.82 is: 2,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.22 : 5,310.53 = 2,079.82 : x
  2. Step 2: Convert to fraction form
    3,848.22/5,310.53 = 2,079.82/x
  3. Step 3: Cross multiply
    3,848.22x = 5,310.53 × 2,079.82
  4. Step 4: Simplify right side
    3,848.22x = 11,044,936.11
  5. Step 5: Solve for x
    x = 11,044,936.11/3,848.22
  6. Step 6: Final answer
    x = 2,870.14

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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.