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Finding the Fourth Proportional to 56,785.77, 84,741.17 and 49,874.85

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Solution

The fourth proportional to 56,785.77, 84,741.17 and 49,874.85 is: 74,428.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,785.77 : 84,741.17 = 49,874.85 : x
  2. Step 2: Convert to fraction form
    56,785.77/84,741.17 = 49,874.85/x
  3. Step 3: Cross multiply
    56,785.77x = 84,741.17 × 49,874.85
  4. Step 4: Simplify right side
    56,785.77x = 4,226,452,893.20
  5. Step 5: Solve for x
    x = 4,226,452,893.20/56,785.77
  6. Step 6: Final answer
    x = 74,428.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.