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Finding the Fourth Proportional to 61,675.79, 92,439.19 and 30,038.44

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Solution

The fourth proportional to 61,675.79, 92,439.19 and 30,038.44 is: 45,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,675.79 : 92,439.19 = 30,038.44 : x
  2. Step 2: Convert to fraction form
    61,675.79/92,439.19 = 30,038.44/x
  3. Step 3: Cross multiply
    61,675.79x = 92,439.19 × 30,038.44
  4. Step 4: Simplify right side
    61,675.79x = 2,776,728,756.27
  5. Step 5: Solve for x
    x = 2,776,728,756.27/61,675.79
  6. Step 6: Final answer
    x = 45,021.37

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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.