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Finding the Fourth Proportional to 61,630.76, 85,050.47 and 34,778.96

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Solution

The fourth proportional to 61,630.76, 85,050.47 and 34,778.96 is: 47,994.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,630.76 : 85,050.47 = 34,778.96 : x
  2. Step 2: Convert to fraction form
    61,630.76/85,050.47 = 34,778.96/x
  3. Step 3: Cross multiply
    61,630.76x = 85,050.47 × 34,778.96
  4. Step 4: Simplify right side
    61,630.76x = 2,957,966,894.11
  5. Step 5: Solve for x
    x = 2,957,966,894.11/61,630.76
  6. Step 6: Final answer
    x = 47,994.98

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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.