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Finding the Fourth Proportional to 10,450.72, 15,681.44 and 6,943.14

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Solution

The fourth proportional to 10,450.72, 15,681.44 and 6,943.14 is: 10,418.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,450.72 : 15,681.44 = 6,943.14 : x
  2. Step 2: Convert to fraction form
    10,450.72/15,681.44 = 6,943.14/x
  3. Step 3: Cross multiply
    10,450.72x = 15,681.44 × 6,943.14
  4. Step 4: Simplify right side
    10,450.72x = 108,878,433.32
  5. Step 5: Solve for x
    x = 108,878,433.32/10,450.72
  6. Step 6: Final answer
    x = 10,418.27

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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.