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Finding the Fourth Proportional to 31,173.44, 46,749.18 and 8,980.88

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Solution

The fourth proportional to 31,173.44, 46,749.18 and 8,980.88 is: 13,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,173.44 : 46,749.18 = 8,980.88 : x
  2. Step 2: Convert to fraction form
    31,173.44/46,749.18 = 8,980.88/x
  3. Step 3: Cross multiply
    31,173.44x = 46,749.18 × 8,980.88
  4. Step 4: Simplify right side
    31,173.44x = 419,848,775.68
  5. Step 5: Solve for x
    x = 419,848,775.68/31,173.44
  6. Step 6: Final answer
    x = 13,468.16

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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.