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Finding the Fourth Proportional to 9,980.03, 13,773.37 and 5,731.68

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Solution

The fourth proportional to 9,980.03, 13,773.37 and 5,731.68 is: 7,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.03 : 13,773.37 = 5,731.68 : x
  2. Step 2: Convert to fraction form
    9,980.03/13,773.37 = 5,731.68/x
  3. Step 3: Cross multiply
    9,980.03x = 13,773.37 × 5,731.68
  4. Step 4: Simplify right side
    9,980.03x = 78,944,549.36
  5. Step 5: Solve for x
    x = 78,944,549.36/9,980.03
  6. Step 6: Final answer
    x = 7,910.25

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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.