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Finding the Fourth Proportional to 10,992.96, 16,488.96 and 4,417.44

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Solution

The fourth proportional to 10,992.96, 16,488.96 and 4,417.44 is: 6,625.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.96 : 16,488.96 = 4,417.44 : x
  2. Step 2: Convert to fraction form
    10,992.96/16,488.96 = 4,417.44/x
  3. Step 3: Cross multiply
    10,992.96x = 16,488.96 × 4,417.44
  4. Step 4: Simplify right side
    10,992.96x = 72,838,991.46
  5. Step 5: Solve for x
    x = 72,838,991.46/10,992.96
  6. Step 6: Final answer
    x = 6,625.97

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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.