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Finding the Fourth Proportional to 15,628.44, 23,455.78 and 6,750.47

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Solution

The fourth proportional to 15,628.44, 23,455.78 and 6,750.47 is: 10,131.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.44 : 23,455.78 = 6,750.47 : x
  2. Step 2: Convert to fraction form
    15,628.44/23,455.78 = 6,750.47/x
  3. Step 3: Cross multiply
    15,628.44x = 23,455.78 × 6,750.47
  4. Step 4: Simplify right side
    15,628.44x = 158,337,580.98
  5. Step 5: Solve for x
    x = 158,337,580.98/15,628.44
  6. Step 6: Final answer
    x = 10,131.37

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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.