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Finding the Fourth Proportional to 62,889.12, 86,784.48 and 34,207.44

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Solution

The fourth proportional to 62,889.12, 86,784.48 and 34,207.44 is: 47,204.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,889.12 : 86,784.48 = 34,207.44 : x
  2. Step 2: Convert to fraction form
    62,889.12/86,784.48 = 34,207.44/x
  3. Step 3: Cross multiply
    62,889.12x = 86,784.48 × 34,207.44
  4. Step 4: Simplify right side
    62,889.12x = 2,968,674,892.53
  5. Step 5: Solve for x
    x = 2,968,674,892.53/62,889.12
  6. Step 6: Final answer
    x = 47,204.90

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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.