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Finding the Fourth Proportional to 69,208.86, 95,508.51 and 38,994.65

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Solution

The fourth proportional to 69,208.86, 95,508.51 and 38,994.65 is: 53,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,208.86 : 95,508.51 = 38,994.65 : x
  2. Step 2: Convert to fraction form
    69,208.86/95,508.51 = 38,994.65/x
  3. Step 3: Cross multiply
    69,208.86x = 95,508.51 × 38,994.65
  4. Step 4: Simplify right side
    69,208.86x = 3,724,320,441.93
  5. Step 5: Solve for x
    x = 3,724,320,441.93/69,208.86
  6. Step 6: Final answer
    x = 53,812.77

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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.