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Finding the Fourth Proportional to 27,080.13, 40,621.03 and 7,359.11

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Solution

The fourth proportional to 27,080.13, 40,621.03 and 7,359.11 is: 11,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,080.13 : 40,621.03 = 7,359.11 : x
  2. Step 2: Convert to fraction form
    27,080.13/40,621.03 = 7,359.11/x
  3. Step 3: Cross multiply
    27,080.13x = 40,621.03 × 7,359.11
  4. Step 4: Simplify right side
    27,080.13x = 298,934,628.08
  5. Step 5: Solve for x
    x = 298,934,628.08/27,080.13
  6. Step 6: Final answer
    x = 11,038.89

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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.