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Finding the Fourth Proportional to 69,924.64, 96,494.80 and 39,709.60

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Solution

The fourth proportional to 69,924.64, 96,494.80 and 39,709.60 is: 54,798.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,924.64 : 96,494.80 = 39,709.60 : x
  2. Step 2: Convert to fraction form
    69,924.64/96,494.80 = 39,709.60/x
  3. Step 3: Cross multiply
    69,924.64x = 96,494.80 × 39,709.60
  4. Step 4: Simplify right side
    69,924.64x = 3,831,769,910.08
  5. Step 5: Solve for x
    x = 3,831,769,910.08/69,924.64
  6. Step 6: Final answer
    x = 54,798.56

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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.