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Finding the Fourth Proportional to 74,353.53, 111,528.48 and 18,193.20

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Solution

The fourth proportional to 74,353.53, 111,528.48 and 18,193.20 is: 27,289.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,353.53 : 111,528.48 = 18,193.20 : x
  2. Step 2: Convert to fraction form
    74,353.53/111,528.48 = 18,193.20/x
  3. Step 3: Cross multiply
    74,353.53x = 111,528.48 × 18,193.20
  4. Step 4: Simplify right side
    74,353.53x = 2,029,059,942.34
  5. Step 5: Solve for x
    x = 2,029,059,942.34/74,353.53
  6. Step 6: Final answer
    x = 27,289.36

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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.