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Finding the Fourth Proportional to 44,803.78, 67,215.39 and 13,638.22

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Solution

The fourth proportional to 44,803.78, 67,215.39 and 13,638.22 is: 20,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,803.78 : 67,215.39 = 13,638.22 : x
  2. Step 2: Convert to fraction form
    44,803.78/67,215.39 = 13,638.22/x
  3. Step 3: Cross multiply
    44,803.78x = 67,215.39 × 13,638.22
  4. Step 4: Simplify right side
    44,803.78x = 916,698,175.14
  5. Step 5: Solve for x
    x = 916,698,175.14/44,803.78
  6. Step 6: Final answer
    x = 20,460.29

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1.5x scale

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.