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Finding the Fourth Proportional to 14,860.92, 20,508.06 and 8,054.94

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Solution

The fourth proportional to 14,860.92, 20,508.06 and 8,054.94 is: 11,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,860.92 : 20,508.06 = 8,054.94 : x
  2. Step 2: Convert to fraction form
    14,860.92/20,508.06 = 8,054.94/x
  3. Step 3: Cross multiply
    14,860.92x = 20,508.06 × 8,054.94
  4. Step 4: Simplify right side
    14,860.92x = 165,191,192.82
  5. Step 5: Solve for x
    x = 165,191,192.82/14,860.92
  6. Step 6: Final answer
    x = 11,115.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.