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Finding the Fourth Proportional to 74,815.26, 112,222.90 and 28,035.32

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Solution

The fourth proportional to 74,815.26, 112,222.90 and 28,035.32 is: 42,052.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,815.26 : 112,222.90 = 28,035.32 : x
  2. Step 2: Convert to fraction form
    74,815.26/112,222.90 = 28,035.32/x
  3. Step 3: Cross multiply
    74,815.26x = 112,222.90 × 28,035.32
  4. Step 4: Simplify right side
    74,815.26x = 3,146,204,912.83
  5. Step 5: Solve for x
    x = 3,146,204,912.83/74,815.26
  6. Step 6: Final answer
    x = 42,052.98

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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.