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Finding the Fourth Proportional to 47,499.99, 71,240.55 and 13,769.97

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Solution

The fourth proportional to 47,499.99, 71,240.55 and 13,769.97 is: 20,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,499.99 : 71,240.55 = 13,769.97 : x
  2. Step 2: Convert to fraction form
    47,499.99/71,240.55 = 13,769.97/x
  3. Step 3: Cross multiply
    47,499.99x = 71,240.55 × 13,769.97
  4. Step 4: Simplify right side
    47,499.99x = 980,980,236.28
  5. Step 5: Solve for x
    x = 980,980,236.28/47,499.99
  6. Step 6: Final answer
    x = 20,652.22

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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.