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Finding the Fourth Proportional to 16,664.65, 25,007.06 and 7,305.21

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Solution

The fourth proportional to 16,664.65, 25,007.06 and 7,305.21 is: 10,962.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,664.65 : 25,007.06 = 7,305.21 : x
  2. Step 2: Convert to fraction form
    16,664.65/25,007.06 = 7,305.21/x
  3. Step 3: Cross multiply
    16,664.65x = 25,007.06 × 7,305.21
  4. Step 4: Simplify right side
    16,664.65x = 182,681,824.78
  5. Step 5: Solve for x
    x = 182,681,824.78/16,664.65
  6. Step 6: Final answer
    x = 10,962.24

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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.