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Finding the Fourth Proportional to 41,203.40, 61,805.10 and 20,467.40

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Solution

The fourth proportional to 41,203.40, 61,805.10 and 20,467.40 is: 30,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,203.40 : 61,805.10 = 20,467.40 : x
  2. Step 2: Convert to fraction form
    41,203.40/61,805.10 = 20,467.40/x
  3. Step 3: Cross multiply
    41,203.40x = 61,805.10 × 20,467.40
  4. Step 4: Simplify right side
    41,203.40x = 1,264,989,703.74
  5. Step 5: Solve for x
    x = 1,264,989,703.74/41,203.40
  6. Step 6: Final answer
    x = 30,701.10

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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.