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Finding the Fourth Proportional to 9,980.55, 13,773.25 and 5,504.46

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Solution

The fourth proportional to 9,980.55, 13,773.25 and 5,504.46 is: 7,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.55 : 13,773.25 = 5,504.46 : x
  2. Step 2: Convert to fraction form
    9,980.55/13,773.25 = 5,504.46/x
  3. Step 3: Cross multiply
    9,980.55x = 13,773.25 × 5,504.46
  4. Step 4: Simplify right side
    9,980.55x = 75,814,310.58
  5. Step 5: Solve for x
    x = 75,814,310.58/9,980.55
  6. Step 6: Final answer
    x = 7,596.20

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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.