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Finding the Fourth Proportional to 2,423.58, 3,635.92 and 692.34

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Solution

The fourth proportional to 2,423.58, 3,635.92 and 692.34 is: 1,038.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.58 : 3,635.92 = 692.34 : x
  2. Step 2: Convert to fraction form
    2,423.58/3,635.92 = 692.34/x
  3. Step 3: Cross multiply
    2,423.58x = 3,635.92 × 692.34
  4. Step 4: Simplify right side
    2,423.58x = 2,517,292.85
  5. Step 5: Solve for x
    x = 2,517,292.85/2,423.58
  6. Step 6: Final answer
    x = 1,038.67

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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.