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Finding the Fourth Proportional to 61,980.66, 92,973.20 and 19,855.27

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Solution

The fourth proportional to 61,980.66, 92,973.20 and 19,855.27 is: 29,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,980.66 : 92,973.20 = 19,855.27 : x
  2. Step 2: Convert to fraction form
    61,980.66/92,973.20 = 19,855.27/x
  3. Step 3: Cross multiply
    61,980.66x = 92,973.20 × 19,855.27
  4. Step 4: Simplify right side
    61,980.66x = 1,846,007,988.76
  5. Step 5: Solve for x
    x = 1,846,007,988.76/61,980.66
  6. Step 6: Final answer
    x = 29,783.61

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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.