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Finding the Fourth Proportional to 12,564.52, 18,850.88 and 6,321.54

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Solution

The fourth proportional to 12,564.52, 18,850.88 and 6,321.54 is: 9,484.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,564.52 : 18,850.88 = 6,321.54 : x
  2. Step 2: Convert to fraction form
    12,564.52/18,850.88 = 6,321.54/x
  3. Step 3: Cross multiply
    12,564.52x = 18,850.88 × 6,321.54
  4. Step 4: Simplify right side
    12,564.52x = 119,166,678.45
  5. Step 5: Solve for x
    x = 119,166,678.45/12,564.52
  6. Step 6: Final answer
    x = 9,484.38

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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.