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Finding the Fourth Proportional to 27,080.46, 40,621.77 and 8,358.84

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Solution

The fourth proportional to 27,080.46, 40,621.77 and 8,358.84 is: 12,538.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,080.46 : 40,621.77 = 8,358.84 : x
  2. Step 2: Convert to fraction form
    27,080.46/40,621.77 = 8,358.84/x
  3. Step 3: Cross multiply
    27,080.46x = 40,621.77 × 8,358.84
  4. Step 4: Simplify right side
    27,080.46x = 339,550,875.95
  5. Step 5: Solve for x
    x = 339,550,875.95/27,080.46
  6. Step 6: Final answer
    x = 12,538.59

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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.