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Finding the Fourth Proportional to 30,581.22, 45,878.73 and 10,859.76

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Solution

The fourth proportional to 30,581.22, 45,878.73 and 10,859.76 is: 16,292.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,581.22 : 45,878.73 = 10,859.76 : x
  2. Step 2: Convert to fraction form
    30,581.22/45,878.73 = 10,859.76/x
  3. Step 3: Cross multiply
    30,581.22x = 45,878.73 × 10,859.76
  4. Step 4: Simplify right side
    30,581.22x = 498,231,996.90
  5. Step 5: Solve for x
    x = 498,231,996.90/30,581.22
  6. Step 6: Final answer
    x = 16,292.09

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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.