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Finding the Fourth Proportional to 61,381.63, 92,076.34 and 19,263.38

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Solution

The fourth proportional to 61,381.63, 92,076.34 and 19,263.38 is: 28,896.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,381.63 : 92,076.34 = 19,263.38 : x
  2. Step 2: Convert to fraction form
    61,381.63/92,076.34 = 19,263.38/x
  3. Step 3: Cross multiply
    61,381.63x = 92,076.34 × 19,263.38
  4. Step 4: Simplify right side
    61,381.63x = 1,773,701,017.89
  5. Step 5: Solve for x
    x = 1,773,701,017.89/61,381.63
  6. Step 6: Final answer
    x = 28,896.29

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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.