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Finding the Fourth Proportional to 28,757.72, 43,122.90 and 10,035.48

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Solution

The fourth proportional to 28,757.72, 43,122.90 and 10,035.48 is: 15,048.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.72 : 43,122.90 = 10,035.48 : x
  2. Step 2: Convert to fraction form
    28,757.72/43,122.90 = 10,035.48/x
  3. Step 3: Cross multiply
    28,757.72x = 43,122.90 × 10,035.48
  4. Step 4: Simplify right side
    28,757.72x = 432,759,000.49
  5. Step 5: Solve for x
    x = 432,759,000.49/28,757.72
  6. Step 6: Final answer
    x = 15,048.45

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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.