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Finding the Fourth Proportional to 13,806.99, 20,708.06 and 4,446.63

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Solution

The fourth proportional to 13,806.99, 20,708.06 and 4,446.63 is: 6,669.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.99 : 20,708.06 = 4,446.63 : x
  2. Step 2: Convert to fraction form
    13,806.99/20,708.06 = 4,446.63/x
  3. Step 3: Cross multiply
    13,806.99x = 20,708.06 × 4,446.63
  4. Step 4: Simplify right side
    13,806.99x = 92,081,058.60
  5. Step 5: Solve for x
    x = 92,081,058.60/13,806.99
  6. Step 6: Final answer
    x = 6,669.16

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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.