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Finding the Fourth Proportional to 74,794.48, 112,190.85 and 21,487.76

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Solution

The fourth proportional to 74,794.48, 112,190.85 and 21,487.76 is: 32,231.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,794.48 : 112,190.85 = 21,487.76 : x
  2. Step 2: Convert to fraction form
    74,794.48/112,190.85 = 21,487.76/x
  3. Step 3: Cross multiply
    74,794.48x = 112,190.85 × 21,487.76
  4. Step 4: Simplify right side
    74,794.48x = 2,410,730,059.00
  5. Step 5: Solve for x
    x = 2,410,730,059.00/74,794.48
  6. Step 6: Final answer
    x = 32,231.39

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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.