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Finding the Fourth Proportional to 35,578.98, 53,376.09 and 10,620.99

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Solution

The fourth proportional to 35,578.98, 53,376.09 and 10,620.99 is: 15,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,578.98 : 53,376.09 = 10,620.99 : x
  2. Step 2: Convert to fraction form
    35,578.98/53,376.09 = 10,620.99/x
  3. Step 3: Cross multiply
    35,578.98x = 53,376.09 × 10,620.99
  4. Step 4: Simplify right side
    35,578.98x = 566,906,918.13
  5. Step 5: Solve for x
    x = 566,906,918.13/35,578.98
  6. Step 6: Final answer
    x = 15,933.76

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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.