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Finding the Fourth Proportional to 35,781.99, 53,672.97 and 10,821.48

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Solution

The fourth proportional to 35,781.99, 53,672.97 and 10,821.48 is: 16,232.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,781.99 : 53,672.97 = 10,821.48 : x
  2. Step 2: Convert to fraction form
    35,781.99/53,672.97 = 10,821.48/x
  3. Step 3: Cross multiply
    35,781.99x = 53,672.97 × 10,821.48
  4. Step 4: Simplify right side
    35,781.99x = 580,820,971.40
  5. Step 5: Solve for x
    x = 580,820,971.40/35,781.99
  6. Step 6: Final answer
    x = 16,232.22

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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.