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Finding the Fourth Proportional to 61,624.30, 92,436.46 and 20,071.30

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Solution

The fourth proportional to 61,624.30, 92,436.46 and 20,071.30 is: 30,106.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,624.30 : 92,436.46 = 20,071.30 : x
  2. Step 2: Convert to fraction form
    61,624.30/92,436.46 = 20,071.30/x
  3. Step 3: Cross multiply
    61,624.30x = 92,436.46 × 20,071.30
  4. Step 4: Simplify right side
    61,624.30x = 1,855,319,919.60
  5. Step 5: Solve for x
    x = 1,855,319,919.60/61,624.30
  6. Step 6: Final answer
    x = 30,106.95

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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.