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Finding the Fourth Proportional to 86,571.65, 119,474.91 and 48,338.72

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Solution

The fourth proportional to 86,571.65, 119,474.91 and 48,338.72 is: 66,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,571.65 : 119,474.91 = 48,338.72 : x
  2. Step 2: Convert to fraction form
    86,571.65/119,474.91 = 48,338.72/x
  3. Step 3: Cross multiply
    86,571.65x = 119,474.91 × 48,338.72
  4. Step 4: Simplify right side
    86,571.65x = 5,775,264,221.52
  5. Step 5: Solve for x
    x = 5,775,264,221.52/86,571.65
  6. Step 6: Final answer
    x = 66,710.80

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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.