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Finding the Fourth Proportional to 61,913.69, 92,870.66 and 15,166.73

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Solution

The fourth proportional to 61,913.69, 92,870.66 and 15,166.73 is: 22,750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,913.69 : 92,870.66 = 15,166.73 : x
  2. Step 2: Convert to fraction form
    61,913.69/92,870.66 = 15,166.73/x
  3. Step 3: Cross multiply
    61,913.69x = 92,870.66 × 15,166.73
  4. Step 4: Simplify right side
    61,913.69x = 1,408,544,225.14
  5. Step 5: Solve for x
    x = 1,408,544,225.14/61,913.69
  6. Step 6: Final answer
    x = 22,750.13

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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.