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Finding the Fourth Proportional to 61,563.58, 92,348.14 and 18,865.88

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Solution

The fourth proportional to 61,563.58, 92,348.14 and 18,865.88 is: 28,299.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,563.58 : 92,348.14 = 18,865.88 : x
  2. Step 2: Convert to fraction form
    61,563.58/92,348.14 = 18,865.88/x
  3. Step 3: Cross multiply
    61,563.58x = 92,348.14 × 18,865.88
  4. Step 4: Simplify right side
    61,563.58x = 1,742,228,927.46
  5. Step 5: Solve for x
    x = 1,742,228,927.46/61,563.58
  6. Step 6: Final answer
    x = 28,299.67

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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.