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Finding the Fourth Proportional to 62,512, 86,268.45 and 34,219.60

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Solution

The fourth proportional to 62,512, 86,268.45 and 34,219.60 is: 47,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,512 : 86,268.45 = 34,219.60 : x
  2. Step 2: Convert to fraction form
    62,512/86,268.45 = 34,219.60/x
  3. Step 3: Cross multiply
    62,512x = 86,268.45 × 34,219.60
  4. Step 4: Simplify right side
    62,512x = 2,952,071,851.62
  5. Step 5: Solve for x
    x = 2,952,071,851.62/62,512
  6. Step 6: Final answer
    x = 47,224.08

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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.