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Finding the Fourth Proportional to 35,665.88, 53,453.03 and 13,452.80

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Solution

The fourth proportional to 35,665.88, 53,453.03 and 13,452.80 is: 20,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,665.88 : 53,453.03 = 13,452.80 : x
  2. Step 2: Convert to fraction form
    35,665.88/53,453.03 = 13,452.80/x
  3. Step 3: Cross multiply
    35,665.88x = 53,453.03 × 13,452.80
  4. Step 4: Simplify right side
    35,665.88x = 719,092,921.98
  5. Step 5: Solve for x
    x = 719,092,921.98/35,665.88
  6. Step 6: Final answer
    x = 20,161.93

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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.