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Finding the Fourth Proportional to 56,603.80, 84,905.70 and 27,079.30

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Solution

The fourth proportional to 56,603.80, 84,905.70 and 27,079.30 is: 40,618.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,603.80 : 84,905.70 = 27,079.30 : x
  2. Step 2: Convert to fraction form
    56,603.80/84,905.70 = 27,079.30/x
  3. Step 3: Cross multiply
    56,603.80x = 84,905.70 × 27,079.30
  4. Step 4: Simplify right side
    56,603.80x = 2,299,186,922.01
  5. Step 5: Solve for x
    x = 2,299,186,922.01/56,603.80
  6. Step 6: Final answer
    x = 40,618.95

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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.