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Finding the Fourth Proportional to 92,847, 128,234.38 and 62,580.14

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Solution

The fourth proportional to 92,847, 128,234.38 and 62,580.14 is: 86,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,847 : 128,234.38 = 62,580.14 : x
  2. Step 2: Convert to fraction form
    92,847/128,234.38 = 62,580.14/x
  3. Step 3: Cross multiply
    92,847x = 128,234.38 × 62,580.14
  4. Step 4: Simplify right side
    92,847x = 8,024,925,453.21
  5. Step 5: Solve for x
    x = 8,024,925,453.21/92,847
  6. Step 6: Final answer
    x = 86,431.72

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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.