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Finding the Fourth Proportional to 45,906.87, 63,327.87 and 30,619.74

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Solution

The fourth proportional to 45,906.87, 63,327.87 and 30,619.74 is: 42,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,906.87 : 63,327.87 = 30,619.74 : x
  2. Step 2: Convert to fraction form
    45,906.87/63,327.87 = 30,619.74/x
  3. Step 3: Cross multiply
    45,906.87x = 63,327.87 × 30,619.74
  4. Step 4: Simplify right side
    45,906.87x = 1,939,082,914.15
  5. Step 5: Solve for x
    x = 1,939,082,914.15/45,906.87
  6. Step 6: Final answer
    x = 42,239.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.