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Finding the Fourth Proportional to 61,964.04, 92,940.36 and 20,411.04

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Solution

The fourth proportional to 61,964.04, 92,940.36 and 20,411.04 is: 30,614.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,964.04 : 92,940.36 = 20,411.04 : x
  2. Step 2: Convert to fraction form
    61,964.04/92,940.36 = 20,411.04/x
  3. Step 3: Cross multiply
    61,964.04x = 92,940.36 × 20,411.04
  4. Step 4: Simplify right side
    61,964.04x = 1,897,009,405.57
  5. Step 5: Solve for x
    x = 1,897,009,405.57/61,964.04
  6. Step 6: Final answer
    x = 30,614.68

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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.