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Finding the Fourth Proportional to 27,228.76, 40,842.02 and 7,506.78

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Solution

The fourth proportional to 27,228.76, 40,842.02 and 7,506.78 is: 11,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,228.76 : 40,842.02 = 7,506.78 : x
  2. Step 2: Convert to fraction form
    27,228.76/40,842.02 = 7,506.78/x
  3. Step 3: Cross multiply
    27,228.76x = 40,842.02 × 7,506.78
  4. Step 4: Simplify right side
    27,228.76x = 306,591,924.50
  5. Step 5: Solve for x
    x = 306,591,924.50/27,228.76
  6. Step 6: Final answer
    x = 11,259.86

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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.