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Finding the Fourth Proportional to 61,242.60, 84,508.50 and 34,388.07

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Solution

The fourth proportional to 61,242.60, 84,508.50 and 34,388.07 is: 47,452.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,242.60 : 84,508.50 = 34,388.07 : x
  2. Step 2: Convert to fraction form
    61,242.60/84,508.50 = 34,388.07/x
  3. Step 3: Cross multiply
    61,242.60x = 84,508.50 × 34,388.07
  4. Step 4: Simplify right side
    61,242.60x = 2,906,084,213.60
  5. Step 5: Solve for x
    x = 2,906,084,213.60/61,242.60
  6. Step 6: Final answer
    x = 47,452.01

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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.