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Finding the Fourth Proportional to 16,999.63, 25,508.17 and 7,011.74

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Solution

The fourth proportional to 16,999.63, 25,508.17 and 7,011.74 is: 10,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.63 : 25,508.17 = 7,011.74 : x
  2. Step 2: Convert to fraction form
    16,999.63/25,508.17 = 7,011.74/x
  3. Step 3: Cross multiply
    16,999.63x = 25,508.17 × 7,011.74
  4. Step 4: Simplify right side
    16,999.63x = 178,856,655.92
  5. Step 5: Solve for x
    x = 178,856,655.92/16,999.63
  6. Step 6: Final answer
    x = 10,521.21

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1.5x scale

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.