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Finding the Fourth Proportional to 86,728.74, 119,691.71 and 48,495.73

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Solution

The fourth proportional to 86,728.74, 119,691.71 and 48,495.73 is: 66,927.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,728.74 : 119,691.71 = 48,495.73 : x
  2. Step 2: Convert to fraction form
    86,728.74/119,691.71 = 48,495.73/x
  3. Step 3: Cross multiply
    86,728.74x = 119,691.71 × 48,495.73
  4. Step 4: Simplify right side
    86,728.74x = 5,804,536,608.92
  5. Step 5: Solve for x
    x = 5,804,536,608.92/86,728.74
  6. Step 6: Final answer
    x = 66,927.49

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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.