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Finding the Fourth Proportional to 8,858.54, 13,265.94 and 5,561.66

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Solution

The fourth proportional to 8,858.54, 13,265.94 and 5,561.66 is: 8,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.54 : 13,265.94 = 5,561.66 : x
  2. Step 2: Convert to fraction form
    8,858.54/13,265.94 = 5,561.66/x
  3. Step 3: Cross multiply
    8,858.54x = 13,265.94 × 5,561.66
  4. Step 4: Simplify right side
    8,858.54x = 73,780,647.86
  5. Step 5: Solve for x
    x = 73,780,647.86/8,858.54
  6. Step 6: Final answer
    x = 8,328.76

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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.