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Finding the Fourth Proportional to 27,217.86, 40,822.08 and 7,491.72

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Solution

The fourth proportional to 27,217.86, 40,822.08 and 7,491.72 is: 11,236.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,217.86 : 40,822.08 = 7,491.72 : x
  2. Step 2: Convert to fraction form
    27,217.86/40,822.08 = 7,491.72/x
  3. Step 3: Cross multiply
    27,217.86x = 40,822.08 × 7,491.72
  4. Step 4: Simplify right side
    27,217.86x = 305,827,718.17
  5. Step 5: Solve for x
    x = 305,827,718.17/27,217.86
  6. Step 6: Final answer
    x = 11,236.29

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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.