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Finding the Fourth Proportional to 27,220.16, 40,826.52 and 7,495.88

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Solution

The fourth proportional to 27,220.16, 40,826.52 and 7,495.88 is: 11,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,220.16 : 40,826.52 = 7,495.88 : x
  2. Step 2: Convert to fraction form
    27,220.16/40,826.52 = 7,495.88/x
  3. Step 3: Cross multiply
    27,220.16x = 40,826.52 × 7,495.88
  4. Step 4: Simplify right side
    27,220.16x = 306,030,694.74
  5. Step 5: Solve for x
    x = 306,030,694.74/27,220.16
  6. Step 6: Final answer
    x = 11,242.80

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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.