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Finding the Fourth Proportional to 32,753.70, 49,130.55 and 20,943.90

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Solution

The fourth proportional to 32,753.70, 49,130.55 and 20,943.90 is: 31,415.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,753.70 : 49,130.55 = 20,943.90 : x
  2. Step 2: Convert to fraction form
    32,753.70/49,130.55 = 20,943.90/x
  3. Step 3: Cross multiply
    32,753.70x = 49,130.55 × 20,943.90
  4. Step 4: Simplify right side
    32,753.70x = 1,028,985,326.15
  5. Step 5: Solve for x
    x = 1,028,985,326.15/32,753.70
  6. Step 6: Final answer
    x = 31,415.85

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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.