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Finding the Fourth Proportional to 61,487.61, 84,852.06 and 34,630.44

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Solution

The fourth proportional to 61,487.61, 84,852.06 and 34,630.44 is: 47,789.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,487.61 : 84,852.06 = 34,630.44 : x
  2. Step 2: Convert to fraction form
    61,487.61/84,852.06 = 34,630.44/x
  3. Step 3: Cross multiply
    61,487.61x = 84,852.06 × 34,630.44
  4. Step 4: Simplify right side
    61,487.61x = 2,938,464,172.71
  5. Step 5: Solve for x
    x = 2,938,464,172.71/61,487.61
  6. Step 6: Final answer
    x = 47,789.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.