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Finding the Fourth Proportional to 35,311.80, 48,728.52 and 19,395.84

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Solution

The fourth proportional to 35,311.80, 48,728.52 and 19,395.84 is: 26,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,311.80 : 48,728.52 = 19,395.84 : x
  2. Step 2: Convert to fraction form
    35,311.80/48,728.52 = 19,395.84/x
  3. Step 3: Cross multiply
    35,311.80x = 48,728.52 × 19,395.84
  4. Step 4: Simplify right side
    35,311.80x = 945,130,577.36
  5. Step 5: Solve for x
    x = 945,130,577.36/35,311.80
  6. Step 6: Final answer
    x = 26,765.29

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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.