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Finding the Fourth Proportional to 14,446.60, 19,937.14 and 8,161.16

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Solution

The fourth proportional to 14,446.60, 19,937.14 and 8,161.16 is: 11,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,446.60 : 19,937.14 = 8,161.16 : x
  2. Step 2: Convert to fraction form
    14,446.60/19,937.14 = 8,161.16/x
  3. Step 3: Cross multiply
    14,446.60x = 19,937.14 × 8,161.16
  4. Step 4: Simplify right side
    14,446.60x = 162,710,189.48
  5. Step 5: Solve for x
    x = 162,710,189.48/14,446.60
  6. Step 6: Final answer
    x = 11,262.87

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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.