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Finding the Fourth Proportional to 18,847.74, 28,274.65 and 5,699.01

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Solution

The fourth proportional to 18,847.74, 28,274.65 and 5,699.01 is: 8,549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.74 : 28,274.65 = 5,699.01 : x
  2. Step 2: Convert to fraction form
    18,847.74/28,274.65 = 5,699.01/x
  3. Step 3: Cross multiply
    18,847.74x = 28,274.65 × 5,699.01
  4. Step 4: Simplify right side
    18,847.74x = 161,137,498.85
  5. Step 5: Solve for x
    x = 161,137,498.85/18,847.74
  6. Step 6: Final answer
    x = 8,549.43

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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.