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Finding the Fourth Proportional to 18,846.96, 28,270.16 and 5,699.60

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Solution

The fourth proportional to 18,846.96, 28,270.16 and 5,699.60 is: 8,549.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,846.96 : 28,270.16 = 5,699.60 : x
  2. Step 2: Convert to fraction form
    18,846.96/28,270.16 = 5,699.60/x
  3. Step 3: Cross multiply
    18,846.96x = 28,270.16 × 5,699.60
  4. Step 4: Simplify right side
    18,846.96x = 161,128,603.94
  5. Step 5: Solve for x
    x = 161,128,603.94/18,846.96
  6. Step 6: Final answer
    x = 8,549.32

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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.