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Finding the Fourth Proportional to 10,998.63, 16,499.43 and 3,207.39

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Solution

The fourth proportional to 10,998.63, 16,499.43 and 3,207.39 is: 4,811.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.63 : 16,499.43 = 3,207.39 : x
  2. Step 2: Convert to fraction form
    10,998.63/16,499.43 = 3,207.39/x
  3. Step 3: Cross multiply
    10,998.63x = 16,499.43 × 3,207.39
  4. Step 4: Simplify right side
    10,998.63x = 52,920,106.79
  5. Step 5: Solve for x
    x = 52,920,106.79/10,998.63
  6. Step 6: Final answer
    x = 4,811.52

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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.