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Finding the Fourth Proportional to 12,806.73, 19,210.05 and 5,959.49

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Solution

The fourth proportional to 12,806.73, 19,210.05 and 5,959.49 is: 8,939.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.73 : 19,210.05 = 5,959.49 : x
  2. Step 2: Convert to fraction form
    12,806.73/19,210.05 = 5,959.49/x
  3. Step 3: Cross multiply
    12,806.73x = 19,210.05 × 5,959.49
  4. Step 4: Simplify right side
    12,806.73x = 114,482,004.82
  5. Step 5: Solve for x
    x = 114,482,004.82/12,806.73
  6. Step 6: Final answer
    x = 8,939.21

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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.