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Finding the Fourth Proportional to 45,835.61, 68,773.02 and 19,187.82

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Solution

The fourth proportional to 45,835.61, 68,773.02 and 19,187.82 is: 28,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,835.61 : 68,773.02 = 19,187.82 : x
  2. Step 2: Convert to fraction form
    45,835.61/68,773.02 = 19,187.82/x
  3. Step 3: Cross multiply
    45,835.61x = 68,773.02 × 19,187.82
  4. Step 4: Simplify right side
    45,835.61x = 1,319,604,256.66
  5. Step 5: Solve for x
    x = 1,319,604,256.66/45,835.61
  6. Step 6: Final answer
    x = 28,789.94

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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.