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Finding the Fourth Proportional to 28,297.67, 42,446.48 and 7,237.74

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Solution

The fourth proportional to 28,297.67, 42,446.48 and 7,237.74 is: 10,856.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,297.67 : 42,446.48 = 7,237.74 : x
  2. Step 2: Convert to fraction form
    28,297.67/42,446.48 = 7,237.74/x
  3. Step 3: Cross multiply
    28,297.67x = 42,446.48 × 7,237.74
  4. Step 4: Simplify right side
    28,297.67x = 307,216,709.14
  5. Step 5: Solve for x
    x = 307,216,709.14/28,297.67
  6. Step 6: Final answer
    x = 10,856.61

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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.