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Finding the Fourth Proportional to 50,905.80, 76,358.70 and 43,032.60

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Solution

The fourth proportional to 50,905.80, 76,358.70 and 43,032.60 is: 64,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,905.80 : 76,358.70 = 43,032.60 : x
  2. Step 2: Convert to fraction form
    50,905.80/76,358.70 = 43,032.60/x
  3. Step 3: Cross multiply
    50,905.80x = 76,358.70 × 43,032.60
  4. Step 4: Simplify right side
    50,905.80x = 3,285,913,393.62
  5. Step 5: Solve for x
    x = 3,285,913,393.62/50,905.80
  6. Step 6: Final answer
    x = 64,548.90

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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.