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Finding the Fourth Proportional to 69,515.52, 104,274.72 and 16,925.28

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Solution

The fourth proportional to 69,515.52, 104,274.72 and 16,925.28 is: 25,388.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,515.52 : 104,274.72 = 16,925.28 : x
  2. Step 2: Convert to fraction form
    69,515.52/104,274.72 = 16,925.28/x
  3. Step 3: Cross multiply
    69,515.52x = 104,274.72 × 16,925.28
  4. Step 4: Simplify right side
    69,515.52x = 1,764,878,832.92
  5. Step 5: Solve for x
    x = 1,764,878,832.92/69,515.52
  6. Step 6: Final answer
    x = 25,388.27

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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.