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Finding the Fourth Proportional to 60,517.72, 90,861.63 and 30,956.77

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Solution

The fourth proportional to 60,517.72, 90,861.63 and 30,956.77 is: 46,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,517.72 : 90,861.63 = 30,956.77 : x
  2. Step 2: Convert to fraction form
    60,517.72/90,861.63 = 30,956.77/x
  3. Step 3: Cross multiply
    60,517.72x = 90,861.63 × 30,956.77
  4. Step 4: Simplify right side
    60,517.72x = 2,812,782,581.74
  5. Step 5: Solve for x
    x = 2,812,782,581.74/60,517.72
  6. Step 6: Final answer
    x = 46,478.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.