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Finding the Fourth Proportional to 25,336.79, 38,007.11 and 8,696.69

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Solution

The fourth proportional to 25,336.79, 38,007.11 and 8,696.69 is: 13,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,336.79 : 38,007.11 = 8,696.69 : x
  2. Step 2: Convert to fraction form
    25,336.79/38,007.11 = 8,696.69/x
  3. Step 3: Cross multiply
    25,336.79x = 38,007.11 × 8,696.69
  4. Step 4: Simplify right side
    25,336.79x = 330,536,053.47
  5. Step 5: Solve for x
    x = 330,536,053.47/25,336.79
  6. Step 6: Final answer
    x = 13,045.70

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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.