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Finding the Fourth Proportional to 82,279.74, 113,543.74 and 48,745.74

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Solution

The fourth proportional to 82,279.74, 113,543.74 and 48,745.74 is: 67,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,279.74 : 113,543.74 = 48,745.74 : x
  2. Step 2: Convert to fraction form
    82,279.74/113,543.74 = 48,745.74/x
  3. Step 3: Cross multiply
    82,279.74x = 113,543.74 × 48,745.74
  4. Step 4: Simplify right side
    82,279.74x = 5,534,773,628.67
  5. Step 5: Solve for x
    x = 5,534,773,628.67/82,279.74
  6. Step 6: Final answer
    x = 67,267.76

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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.