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Finding the Fourth Proportional to 67,809.12, 101,653.74 and 25,659.93

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Solution

The fourth proportional to 67,809.12, 101,653.74 and 25,659.93 is: 38,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,809.12 : 101,653.74 = 25,659.93 : x
  2. Step 2: Convert to fraction form
    67,809.12/101,653.74 = 25,659.93/x
  3. Step 3: Cross multiply
    67,809.12x = 101,653.74 × 25,659.93
  4. Step 4: Simplify right side
    67,809.12x = 2,608,427,852.64
  5. Step 5: Solve for x
    x = 2,608,427,852.64/67,809.12
  6. Step 6: Final answer
    x = 38,467.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.