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Finding the Fourth Proportional to 53,928.40, 80,892.60 and 50,866.60

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Solution

The fourth proportional to 53,928.40, 80,892.60 and 50,866.60 is: 76,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,928.40 : 80,892.60 = 50,866.60 : x
  2. Step 2: Convert to fraction form
    53,928.40/80,892.60 = 50,866.60/x
  3. Step 3: Cross multiply
    53,928.40x = 80,892.60 × 50,866.60
  4. Step 4: Simplify right side
    53,928.40x = 4,114,731,527.16
  5. Step 5: Solve for x
    x = 4,114,731,527.16/53,928.40
  6. Step 6: Final answer
    x = 76,299.90

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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.