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Finding the Fourth Proportional to 16,874.64, 25,302.48 and 7,007.28

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Solution

The fourth proportional to 16,874.64, 25,302.48 and 7,007.28 is: 10,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,874.64 : 25,302.48 = 7,007.28 : x
  2. Step 2: Convert to fraction form
    16,874.64/25,302.48 = 7,007.28/x
  3. Step 3: Cross multiply
    16,874.64x = 25,302.48 × 7,007.28
  4. Step 4: Simplify right side
    16,874.64x = 177,301,562.05
  5. Step 5: Solve for x
    x = 177,301,562.05/16,874.64
  6. Step 6: Final answer
    x = 10,506.98

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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.