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Finding the Fourth Proportional to 27,998.61, 41,998.01 and 19,206.87

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Solution

The fourth proportional to 27,998.61, 41,998.01 and 19,206.87 is: 28,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998.61 : 41,998.01 = 19,206.87 : x
  2. Step 2: Convert to fraction form
    27,998.61/41,998.01 = 19,206.87/x
  3. Step 3: Cross multiply
    27,998.61x = 41,998.01 × 19,206.87
  4. Step 4: Simplify right side
    27,998.61x = 806,650,222.29
  5. Step 5: Solve for x
    x = 806,650,222.29/27,998.61
  6. Step 6: Final answer
    x = 28,810.37

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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.