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Finding the Fourth Proportional to 29,299.44, 43,973.72 and 12,672.16

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Solution

The fourth proportional to 29,299.44, 43,973.72 and 12,672.16 is: 19,018.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,299.44 : 43,973.72 = 12,672.16 : x
  2. Step 2: Convert to fraction form
    29,299.44/43,973.72 = 12,672.16/x
  3. Step 3: Cross multiply
    29,299.44x = 43,973.72 × 12,672.16
  4. Step 4: Simplify right side
    29,299.44x = 557,242,015.64
  5. Step 5: Solve for x
    x = 557,242,015.64/29,299.44
  6. Step 6: Final answer
    x = 19,018.86

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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.