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Finding the Fourth Proportional to 12,673.17, 19,009.89 and 3,908.16

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Solution

The fourth proportional to 12,673.17, 19,009.89 and 3,908.16 is: 5,862.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,673.17 : 19,009.89 = 3,908.16 : x
  2. Step 2: Convert to fraction form
    12,673.17/19,009.89 = 3,908.16/x
  3. Step 3: Cross multiply
    12,673.17x = 19,009.89 × 3,908.16
  4. Step 4: Simplify right side
    12,673.17x = 74,293,691.70
  5. Step 5: Solve for x
    x = 74,293,691.70/12,673.17
  6. Step 6: Final answer
    x = 5,862.28

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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.