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Finding the Fourth Proportional to 62,904.85, 86,808.89 and 34,224.49

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Solution

The fourth proportional to 62,904.85, 86,808.89 and 34,224.49 is: 47,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,904.85 : 86,808.89 = 34,224.49 : x
  2. Step 2: Convert to fraction form
    62,904.85/86,808.89 = 34,224.49/x
  3. Step 3: Cross multiply
    62,904.85x = 86,808.89 × 34,224.49
  4. Step 4: Simplify right side
    62,904.85x = 2,970,989,856.26
  5. Step 5: Solve for x
    x = 2,970,989,856.26/62,904.85
  6. Step 6: Final answer
    x = 47,229.90

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1.5x scale

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.