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Finding the Fourth Proportional to 9,879.55, 13,635.06 and 6,104.55

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Solution

The fourth proportional to 9,879.55, 13,635.06 and 6,104.55 is: 8,425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.55 : 13,635.06 = 6,104.55 : x
  2. Step 2: Convert to fraction form
    9,879.55/13,635.06 = 6,104.55/x
  3. Step 3: Cross multiply
    9,879.55x = 13,635.06 × 6,104.55
  4. Step 4: Simplify right side
    9,879.55x = 83,235,874.23
  5. Step 5: Solve for x
    x = 83,235,874.23/9,879.55
  6. Step 6: Final answer
    x = 8,425.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.