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Finding the Fourth Proportional to 30,199.75, 45,307.83 and 10,479.84

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Solution

The fourth proportional to 30,199.75, 45,307.83 and 10,479.84 is: 15,722.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,199.75 : 45,307.83 = 10,479.84 : x
  2. Step 2: Convert to fraction form
    30,199.75/45,307.83 = 10,479.84/x
  3. Step 3: Cross multiply
    30,199.75x = 45,307.83 × 10,479.84
  4. Step 4: Simplify right side
    30,199.75x = 474,818,967.64
  5. Step 5: Solve for x
    x = 474,818,967.64/30,199.75
  6. Step 6: Final answer
    x = 15,722.61

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