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Finding the Fourth Proportional to 69,380.32, 95,746.32 and 39,159.84

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Solution

The fourth proportional to 69,380.32, 95,746.32 and 39,159.84 is: 54,041.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,380.32 : 95,746.32 = 39,159.84 : x
  2. Step 2: Convert to fraction form
    69,380.32/95,746.32 = 39,159.84/x
  3. Step 3: Cross multiply
    69,380.32x = 95,746.32 × 39,159.84
  4. Step 4: Simplify right side
    69,380.32x = 3,749,410,571.79
  5. Step 5: Solve for x
    x = 3,749,410,571.79/69,380.32
  6. Step 6: Final answer
    x = 54,041.41

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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.