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Finding the Fourth Proportional to 16,913.65, 25,342.77 and 9,007.77

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Solution

The fourth proportional to 16,913.65, 25,342.77 and 9,007.77 is: 13,496.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,913.65 : 25,342.77 = 9,007.77 : x
  2. Step 2: Convert to fraction form
    16,913.65/25,342.77 = 9,007.77/x
  3. Step 3: Cross multiply
    16,913.65x = 25,342.77 × 9,007.77
  4. Step 4: Simplify right side
    16,913.65x = 228,281,972.14
  5. Step 5: Solve for x
    x = 228,281,972.14/16,913.65
  6. Step 6: Final answer
    x = 13,496.91

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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.