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Finding the Fourth Proportional to 27,175.80, 40,751.55 and 10,530.30

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Solution

The fourth proportional to 27,175.80, 40,751.55 and 10,530.30 is: 15,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,175.80 : 40,751.55 = 10,530.30 : x
  2. Step 2: Convert to fraction form
    27,175.80/40,751.55 = 10,530.30/x
  3. Step 3: Cross multiply
    27,175.80x = 40,751.55 × 10,530.30
  4. Step 4: Simplify right side
    27,175.80x = 429,126,046.97
  5. Step 5: Solve for x
    x = 429,126,046.97/27,175.80
  6. Step 6: Final answer
    x = 15,790.74

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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.