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Finding the Fourth Proportional to 26,806.60, 36,991.60 and 14,869.08

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Solution

The fourth proportional to 26,806.60, 36,991.60 and 14,869.08 is: 20,518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,806.60 : 36,991.60 = 14,869.08 : x
  2. Step 2: Convert to fraction form
    26,806.60/36,991.60 = 14,869.08/x
  3. Step 3: Cross multiply
    26,806.60x = 36,991.60 × 14,869.08
  4. Step 4: Simplify right side
    26,806.60x = 550,031,059.73
  5. Step 5: Solve for x
    x = 550,031,059.73/26,806.60
  6. Step 6: Final answer
    x = 20,518.49

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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.