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Finding the Fourth Proportional to 17,884.76, 26,806.50 and 13,134.20

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Solution

The fourth proportional to 17,884.76, 26,806.50 and 13,134.20 is: 19,686.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,884.76 : 26,806.50 = 13,134.20 : x
  2. Step 2: Convert to fraction form
    17,884.76/26,806.50 = 13,134.20/x
  3. Step 3: Cross multiply
    17,884.76x = 26,806.50 × 13,134.20
  4. Step 4: Simplify right side
    17,884.76x = 352,081,932.30
  5. Step 5: Solve for x
    x = 352,081,932.30/17,884.76
  6. Step 6: Final answer
    x = 19,686.14

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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.