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Finding the Fourth Proportional to 35,393.46, 48,844.99 and 20,288.63

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Solution

The fourth proportional to 35,393.46, 48,844.99 and 20,288.63 is: 27,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,393.46 : 48,844.99 = 20,288.63 : x
  2. Step 2: Convert to fraction form
    35,393.46/48,844.99 = 20,288.63/x
  3. Step 3: Cross multiply
    35,393.46x = 48,844.99 × 20,288.63
  4. Step 4: Simplify right side
    35,393.46x = 990,997,583.80
  5. Step 5: Solve for x
    x = 990,997,583.80/35,393.46
  6. Step 6: Final answer
    x = 27,999.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.