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Finding the Fourth Proportional to 45,370.52, 67,978.98 and 27,803.72

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Solution

The fourth proportional to 45,370.52, 67,978.98 and 27,803.72 is: 41,658.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,370.52 : 67,978.98 = 27,803.72 : x
  2. Step 2: Convert to fraction form
    45,370.52/67,978.98 = 27,803.72/x
  3. Step 3: Cross multiply
    45,370.52x = 67,978.98 × 27,803.72
  4. Step 4: Simplify right side
    45,370.52x = 1,890,068,525.81
  5. Step 5: Solve for x
    x = 1,890,068,525.81/45,370.52
  6. Step 6: Final answer
    x = 41,658.52

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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.