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Finding the Fourth Proportional to 58,391.96, 80,579.22 and 34,518.56

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Solution

The fourth proportional to 58,391.96, 80,579.22 and 34,518.56 is: 47,634.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,391.96 : 80,579.22 = 34,518.56 : x
  2. Step 2: Convert to fraction form
    58,391.96/80,579.22 = 34,518.56/x
  3. Step 3: Cross multiply
    58,391.96x = 80,579.22 × 34,518.56
  4. Step 4: Simplify right side
    58,391.96x = 2,781,478,640.32
  5. Step 5: Solve for x
    x = 2,781,478,640.32/58,391.96
  6. Step 6: Final answer
    x = 47,634.62

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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.