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Finding the Fourth Proportional to 57,999.30, 86,998.95 and 49,251.30

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Solution

The fourth proportional to 57,999.30, 86,998.95 and 49,251.30 is: 73,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,999.30 : 86,998.95 = 49,251.30 : x
  2. Step 2: Convert to fraction form
    57,999.30/86,998.95 = 49,251.30/x
  3. Step 3: Cross multiply
    57,999.30x = 86,998.95 × 49,251.30
  4. Step 4: Simplify right side
    57,999.30x = 4,284,811,386.14
  5. Step 5: Solve for x
    x = 4,284,811,386.14/57,999.30
  6. Step 6: Final answer
    x = 73,876.95

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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.