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Finding the Fourth Proportional to 35,319.06, 48,742.02 and 21,897.36

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Solution

The fourth proportional to 35,319.06, 48,742.02 and 21,897.36 is: 30,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,319.06 : 48,742.02 = 21,897.36 : x
  2. Step 2: Convert to fraction form
    35,319.06/48,742.02 = 21,897.36/x
  3. Step 3: Cross multiply
    35,319.06x = 48,742.02 × 21,897.36
  4. Step 4: Simplify right side
    35,319.06x = 1,067,321,559.07
  5. Step 5: Solve for x
    x = 1,067,321,559.07/35,319.06
  6. Step 6: Final answer
    x = 30,219.42

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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.