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Finding the Fourth Proportional to 19,998.73, 29,988.02 and 6,667.00

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Solution

The fourth proportional to 19,998.73, 29,988.02 and 6,667.00 is: 9,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.73 : 29,988.02 = 6,667.00 : x
  2. Step 2: Convert to fraction form
    19,998.73/29,988.02 = 6,667.00/x
  3. Step 3: Cross multiply
    19,998.73x = 29,988.02 × 6,667.00
  4. Step 4: Simplify right side
    19,998.73x = 199,930,071.04
  5. Step 5: Solve for x
    x = 199,930,071.04/19,998.73
  6. Step 6: Final answer
    x = 9,997.14

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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.