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Finding the Fourth Proportional to 74,503.50, 111,733.38 and 21,900.48

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Solution

The fourth proportional to 74,503.50, 111,733.38 and 21,900.48 is: 32,844.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,503.50 : 111,733.38 = 21,900.48 : x
  2. Step 2: Convert to fraction form
    74,503.50/111,733.38 = 21,900.48/x
  3. Step 3: Cross multiply
    74,503.50x = 111,733.38 × 21,900.48
  4. Step 4: Simplify right side
    74,503.50x = 2,447,014,654.02
  5. Step 5: Solve for x
    x = 2,447,014,654.02/74,503.50
  6. Step 6: Final answer
    x = 32,844.29

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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.