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Finding the Fourth Proportional to 35,932.80, 53,889.60 and 10,972.80

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Solution

The fourth proportional to 35,932.80, 53,889.60 and 10,972.80 is: 16,456.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,932.80 : 53,889.60 = 10,972.80 : x
  2. Step 2: Convert to fraction form
    35,932.80/53,889.60 = 10,972.80/x
  3. Step 3: Cross multiply
    35,932.80x = 53,889.60 × 10,972.80
  4. Step 4: Simplify right side
    35,932.80x = 591,319,802.88
  5. Step 5: Solve for x
    x = 591,319,802.88/35,932.80
  6. Step 6: Final answer
    x = 16,456.27

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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.