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Finding the Fourth Proportional to 86,895.67, 119,912.69 and 48,651.64

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Solution

The fourth proportional to 86,895.67, 119,912.69 and 48,651.64 is: 67,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,895.67 : 119,912.69 = 48,651.64 : x
  2. Step 2: Convert to fraction form
    86,895.67/119,912.69 = 48,651.64/x
  3. Step 3: Cross multiply
    86,895.67x = 119,912.69 × 48,651.64
  4. Step 4: Simplify right side
    86,895.67x = 5,833,948,425.75
  5. Step 5: Solve for x
    x = 5,833,948,425.75/86,895.67
  6. Step 6: Final answer
    x = 67,137.39

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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.