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Finding the Fourth Proportional to 16,907.69, 23,332.49 and 9,455.69

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Solution

The fourth proportional to 16,907.69, 23,332.49 and 9,455.69 is: 13,048.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,907.69 : 23,332.49 = 9,455.69 : x
  2. Step 2: Convert to fraction form
    16,907.69/23,332.49 = 9,455.69/x
  3. Step 3: Cross multiply
    16,907.69x = 23,332.49 × 9,455.69
  4. Step 4: Simplify right side
    16,907.69x = 220,624,838.88
  5. Step 5: Solve for x
    x = 220,624,838.88/16,907.69
  6. Step 6: Final answer
    x = 13,048.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.