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Finding the Fourth Proportional to 61,624.37, 92,436.55 and 20,071.37

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Solution

The fourth proportional to 61,624.37, 92,436.55 and 20,071.37 is: 30,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,624.37 : 92,436.55 = 20,071.37 : x
  2. Step 2: Convert to fraction form
    61,624.37/92,436.55 = 20,071.37/x
  3. Step 3: Cross multiply
    61,624.37x = 92,436.55 × 20,071.37
  4. Step 4: Simplify right side
    61,624.37x = 1,855,328,196.57
  5. Step 5: Solve for x
    x = 1,855,328,196.57/61,624.37
  6. Step 6: Final answer
    x = 30,107.05

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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.