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Finding the Fourth Proportional to 44,995.50, 67,456.80 and 18,719.91

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Solution

The fourth proportional to 44,995.50, 67,456.80 and 18,719.91 is: 28,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,995.50 : 67,456.80 = 18,719.91 : x
  2. Step 2: Convert to fraction form
    44,995.50/67,456.80 = 18,719.91/x
  3. Step 3: Cross multiply
    44,995.50x = 67,456.80 × 18,719.91
  4. Step 4: Simplify right side
    44,995.50x = 1,262,785,224.89
  5. Step 5: Solve for x
    x = 1,262,785,224.89/44,995.50
  6. Step 6: Final answer
    x = 28,064.70

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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.