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Finding the Fourth Proportional to 39,603, 54,638.68 and 22,595.03

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Solution

The fourth proportional to 39,603, 54,638.68 and 22,595.03 is: 31,173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,603 : 54,638.68 = 22,595.03 : x
  2. Step 2: Convert to fraction form
    39,603/54,638.68 = 22,595.03/x
  3. Step 3: Cross multiply
    39,603x = 54,638.68 × 22,595.03
  4. Step 4: Simplify right side
    39,603x = 1,234,562,613.76
  5. Step 5: Solve for x
    x = 1,234,562,613.76/39,603
  6. Step 6: Final answer
    x = 31,173.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.