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Finding the Fourth Proportional to 52,611.60, 78,917.40 and 32,928.60

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Solution

The fourth proportional to 52,611.60, 78,917.40 and 32,928.60 is: 49,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,611.60 : 78,917.40 = 32,928.60 : x
  2. Step 2: Convert to fraction form
    52,611.60/78,917.40 = 32,928.60/x
  3. Step 3: Cross multiply
    52,611.60x = 78,917.40 × 32,928.60
  4. Step 4: Simplify right side
    52,611.60x = 2,598,639,497.64
  5. Step 5: Solve for x
    x = 2,598,639,497.64/52,611.60
  6. Step 6: Final answer
    x = 49,392.90

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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.