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Finding the Fourth Proportional to 30,241.88, 41,731.43 and 16,812.32

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Solution

The fourth proportional to 30,241.88, 41,731.43 and 16,812.32 is: 23,199.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,241.88 : 41,731.43 = 16,812.32 : x
  2. Step 2: Convert to fraction form
    30,241.88/41,731.43 = 16,812.32/x
  3. Step 3: Cross multiply
    30,241.88x = 41,731.43 × 16,812.32
  4. Step 4: Simplify right side
    30,241.88x = 701,602,155.22
  5. Step 5: Solve for x
    x = 701,602,155.22/30,241.88
  6. Step 6: Final answer
    x = 23,199.69

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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.