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Finding the Fourth Proportional to 45,304.81, 67,927.21 and 21,616.01

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Solution

The fourth proportional to 45,304.81, 67,927.21 and 21,616.01 is: 32,409.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,304.81 : 67,927.21 = 21,616.01 : x
  2. Step 2: Convert to fraction form
    45,304.81/67,927.21 = 21,616.01/x
  3. Step 3: Cross multiply
    45,304.81x = 67,927.21 × 21,616.01
  4. Step 4: Simplify right side
    45,304.81x = 1,468,314,911.00
  5. Step 5: Solve for x
    x = 1,468,314,911.00/45,304.81
  6. Step 6: Final answer
    x = 32,409.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.