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Finding the Fourth Proportional to 10,010.70, 15,003.27 and 4,745.70

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Solution

The fourth proportional to 10,010.70, 15,003.27 and 4,745.70 is: 7,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,010.70 : 15,003.27 = 4,745.70 : x
  2. Step 2: Convert to fraction form
    10,010.70/15,003.27 = 4,745.70/x
  3. Step 3: Cross multiply
    10,010.70x = 15,003.27 × 4,745.70
  4. Step 4: Simplify right side
    10,010.70x = 71,201,018.44
  5. Step 5: Solve for x
    x = 71,201,018.44/10,010.70
  6. Step 6: Final answer
    x = 7,112.49

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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.