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Finding the Fourth Proportional to 67,338.64, 101,007.93 and 25,785.64

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Solution

The fourth proportional to 67,338.64, 101,007.93 and 25,785.64 is: 38,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,338.64 : 101,007.93 = 25,785.64 : x
  2. Step 2: Convert to fraction form
    67,338.64/101,007.93 = 25,785.64/x
  3. Step 3: Cross multiply
    67,338.64x = 101,007.93 × 25,785.64
  4. Step 4: Simplify right side
    67,338.64x = 2,604,554,120.13
  5. Step 5: Solve for x
    x = 2,604,554,120.13/67,338.64
  6. Step 6: Final answer
    x = 38,678.45

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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.