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Finding the Fourth Proportional to 16,812.31, 25,203.42 and 6,945.29

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Solution

The fourth proportional to 16,812.31, 25,203.42 and 6,945.29 is: 10,411.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812.31 : 25,203.42 = 6,945.29 : x
  2. Step 2: Convert to fraction form
    16,812.31/25,203.42 = 6,945.29/x
  3. Step 3: Cross multiply
    16,812.31x = 25,203.42 × 6,945.29
  4. Step 4: Simplify right side
    16,812.31x = 175,045,060.89
  5. Step 5: Solve for x
    x = 175,045,060.89/16,812.31
  6. Step 6: Final answer
    x = 10,411.72

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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.