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Finding the Fourth Proportional to 19,305.22, 26,639.01 and 10,806.16

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Solution

The fourth proportional to 19,305.22, 26,639.01 and 10,806.16 is: 14,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.22 : 26,639.01 = 10,806.16 : x
  2. Step 2: Convert to fraction form
    19,305.22/26,639.01 = 10,806.16/x
  3. Step 3: Cross multiply
    19,305.22x = 26,639.01 × 10,806.16
  4. Step 4: Simplify right side
    19,305.22x = 287,865,404.30
  5. Step 5: Solve for x
    x = 287,865,404.30/19,305.22
  6. Step 6: Final answer
    x = 14,911.27

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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.