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Finding the Fourth Proportional to 18,846.66, 28,269.69 and 5,699.15

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Solution

The fourth proportional to 18,846.66, 28,269.69 and 5,699.15 is: 8,548.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,846.66 : 28,269.69 = 5,699.15 : x
  2. Step 2: Convert to fraction form
    18,846.66/28,269.69 = 5,699.15/x
  3. Step 3: Cross multiply
    18,846.66x = 28,269.69 × 5,699.15
  4. Step 4: Simplify right side
    18,846.66x = 161,113,203.76
  5. Step 5: Solve for x
    x = 161,113,203.76/18,846.66
  6. Step 6: Final answer
    x = 8,548.63

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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.