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Finding the Fourth Proportional to 54,082.86, 74,635.86 and 29,885.40

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Solution

The fourth proportional to 54,082.86, 74,635.86 and 29,885.40 is: 41,242.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,082.86 : 74,635.86 = 29,885.40 : x
  2. Step 2: Convert to fraction form
    54,082.86/74,635.86 = 29,885.40/x
  3. Step 3: Cross multiply
    54,082.86x = 74,635.86 × 29,885.40
  4. Step 4: Simplify right side
    54,082.86x = 2,230,522,530.44
  5. Step 5: Solve for x
    x = 2,230,522,530.44/54,082.86
  6. Step 6: Final answer
    x = 41,242.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.