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Finding the Fourth Proportional to 58,163.92, 87,259.80 and 18,724.72

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Solution

The fourth proportional to 58,163.92, 87,259.80 and 18,724.72 is: 28,091.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,163.92 : 87,259.80 = 18,724.72 : x
  2. Step 2: Convert to fraction form
    58,163.92/87,259.80 = 18,724.72/x
  3. Step 3: Cross multiply
    58,163.92x = 87,259.80 × 18,724.72
  4. Step 4: Simplify right side
    58,163.92x = 1,633,915,322.26
  5. Step 5: Solve for x
    x = 1,633,915,322.26/58,163.92
  6. Step 6: Final answer
    x = 28,091.56

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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.