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Finding the Fourth Proportional to 44,809.34, 67,223.77 and 13,643.78

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Solution

The fourth proportional to 44,809.34, 67,223.77 and 13,643.78 is: 20,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,809.34 : 67,223.77 = 13,643.78 : x
  2. Step 2: Convert to fraction form
    44,809.34/67,223.77 = 13,643.78/x
  3. Step 3: Cross multiply
    44,809.34x = 67,223.77 × 13,643.78
  4. Step 4: Simplify right side
    44,809.34x = 917,186,260.43
  5. Step 5: Solve for x
    x = 917,186,260.43/44,809.34
  6. Step 6: Final answer
    x = 20,468.64

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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.