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Finding the Fourth Proportional to 60,175.96, 90,272.59 and 20,722.48

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Solution

The fourth proportional to 60,175.96, 90,272.59 and 20,722.48 is: 31,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,175.96 : 90,272.59 = 20,722.48 : x
  2. Step 2: Convert to fraction form
    60,175.96/90,272.59 = 20,722.48/x
  3. Step 3: Cross multiply
    60,175.96x = 90,272.59 × 20,722.48
  4. Step 4: Simplify right side
    60,175.96x = 1,870,671,940.82
  5. Step 5: Solve for x
    x = 1,870,671,940.82/60,175.96
  6. Step 6: Final answer
    x = 31,086.70

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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.