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Finding the Fourth Proportional to 73,039.92, 100,811.34 and 47,501.88

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Solution

The fourth proportional to 73,039.92, 100,811.34 and 47,501.88 is: 65,563.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,039.92 : 100,811.34 = 47,501.88 : x
  2. Step 2: Convert to fraction form
    73,039.92/100,811.34 = 47,501.88/x
  3. Step 3: Cross multiply
    73,039.92x = 100,811.34 × 47,501.88
  4. Step 4: Simplify right side
    73,039.92x = 4,788,728,175.32
  5. Step 5: Solve for x
    x = 4,788,728,175.32/73,039.92
  6. Step 6: Final answer
    x = 65,563.16

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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.