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Finding the Fourth Proportional to 63,039.60, 86,991.84 and 34,743.60

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Solution

The fourth proportional to 63,039.60, 86,991.84 and 34,743.60 is: 47,944.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,039.60 : 86,991.84 = 34,743.60 : x
  2. Step 2: Convert to fraction form
    63,039.60/86,991.84 = 34,743.60/x
  3. Step 3: Cross multiply
    63,039.60x = 86,991.84 × 34,743.60
  4. Step 4: Simplify right side
    63,039.60x = 3,022,409,692.22
  5. Step 5: Solve for x
    x = 3,022,409,692.22/63,039.60
  6. Step 6: Final answer
    x = 47,944.62

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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.