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Finding the Fourth Proportional to 44,699.20, 67,048.80 and 21,371.20

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Solution

The fourth proportional to 44,699.20, 67,048.80 and 21,371.20 is: 32,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,699.20 : 67,048.80 = 21,371.20 : x
  2. Step 2: Convert to fraction form
    44,699.20/67,048.80 = 21,371.20/x
  3. Step 3: Cross multiply
    44,699.20x = 67,048.80 × 21,371.20
  4. Step 4: Simplify right side
    44,699.20x = 1,432,913,314.56
  5. Step 5: Solve for x
    x = 1,432,913,314.56/44,699.20
  6. Step 6: Final answer
    x = 32,056.80

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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.