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Finding the Fourth Proportional to 30,342.22, 41,872.44 and 16,914.32

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Solution

The fourth proportional to 30,342.22, 41,872.44 and 16,914.32 is: 23,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342.22 : 41,872.44 = 16,914.32 : x
  2. Step 2: Convert to fraction form
    30,342.22/41,872.44 = 16,914.32/x
  3. Step 3: Cross multiply
    30,342.22x = 41,872.44 × 16,914.32
  4. Step 4: Simplify right side
    30,342.22x = 708,243,849.34
  5. Step 5: Solve for x
    x = 708,243,849.34/30,342.22
  6. Step 6: Final answer
    x = 23,341.86

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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.