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Finding the Fourth Proportional to 27,881.55, 41,823.48 and 8,160.11

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Solution

The fourth proportional to 27,881.55, 41,823.48 and 8,160.11 is: 12,240.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.55 : 41,823.48 = 8,160.11 : x
  2. Step 2: Convert to fraction form
    27,881.55/41,823.48 = 8,160.11/x
  3. Step 3: Cross multiply
    27,881.55x = 41,823.48 × 8,160.11
  4. Step 4: Simplify right side
    27,881.55x = 341,283,988.27
  5. Step 5: Solve for x
    x = 341,283,988.27/27,881.55
  6. Step 6: Final answer
    x = 12,240.50

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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.