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Finding the Fourth Proportional to 27,168.81, 40,748.84 and 7,442.75

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Solution

The fourth proportional to 27,168.81, 40,748.84 and 7,442.75 is: 11,162.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,168.81 : 40,748.84 = 7,442.75 : x
  2. Step 2: Convert to fraction form
    27,168.81/40,748.84 = 7,442.75/x
  3. Step 3: Cross multiply
    27,168.81x = 40,748.84 × 7,442.75
  4. Step 4: Simplify right side
    27,168.81x = 303,283,428.91
  5. Step 5: Solve for x
    x = 303,283,428.91/27,168.81
  6. Step 6: Final answer
    x = 11,162.93

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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.