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Finding the Fourth Proportional to 50,909.60, 70,254.96 and 28,247.96

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Solution

The fourth proportional to 50,909.60, 70,254.96 and 28,247.96 is: 38,982.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,909.60 : 70,254.96 = 28,247.96 : x
  2. Step 2: Convert to fraction form
    50,909.60/70,254.96 = 28,247.96/x
  3. Step 3: Cross multiply
    50,909.60x = 70,254.96 × 28,247.96
  4. Step 4: Simplify right side
    50,909.60x = 1,984,559,299.88
  5. Step 5: Solve for x
    x = 1,984,559,299.88/50,909.60
  6. Step 6: Final answer
    x = 38,982.02

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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.