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Finding the Fourth Proportional to 69,559.50, 95,992.11 and 39,751.50

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Solution

The fourth proportional to 69,559.50, 95,992.11 and 39,751.50 is: 54,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,559.50 : 95,992.11 = 39,751.50 : x
  2. Step 2: Convert to fraction form
    69,559.50/95,992.11 = 39,751.50/x
  3. Step 3: Cross multiply
    69,559.50x = 95,992.11 × 39,751.50
  4. Step 4: Simplify right side
    69,559.50x = 3,815,830,360.67
  5. Step 5: Solve for x
    x = 3,815,830,360.67/69,559.50
  6. Step 6: Final answer
    x = 54,857.07

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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.