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Finding the Fourth Proportional to 34,803, 48,028.20 and 19,899

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Solution

The fourth proportional to 34,803, 48,028.20 and 19,899 is: 27,460.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,803 : 48,028.20 = 19,899 : x
  2. Step 2: Convert to fraction form
    34,803/48,028.20 = 19,899/x
  3. Step 3: Cross multiply
    34,803x = 48,028.20 × 19,899
  4. Step 4: Simplify right side
    34,803x = 955,713,151.80
  5. Step 5: Solve for x
    x = 955,713,151.80/34,803
  6. Step 6: Final answer
    x = 27,460.65

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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.