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Finding the Fourth Proportional to 14,433.96, 19,917.14 and 8,145.92

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Solution

The fourth proportional to 14,433.96, 19,917.14 and 8,145.92 is: 11,240.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,433.96 : 19,917.14 = 8,145.92 : x
  2. Step 2: Convert to fraction form
    14,433.96/19,917.14 = 8,145.92/x
  3. Step 3: Cross multiply
    14,433.96x = 19,917.14 × 8,145.92
  4. Step 4: Simplify right side
    14,433.96x = 162,243,429.07
  5. Step 5: Solve for x
    x = 162,243,429.07/14,433.96
  6. Step 6: Final answer
    x = 11,240.40

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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.