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Finding the Fourth Proportional to 2,423.67, 3,635.64 and 692.25

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Solution

The fourth proportional to 2,423.67, 3,635.64 and 692.25 is: 1,038.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.67 : 3,635.64 = 692.25 : x
  2. Step 2: Convert to fraction form
    2,423.67/3,635.64 = 692.25/x
  3. Step 3: Cross multiply
    2,423.67x = 3,635.64 × 692.25
  4. Step 4: Simplify right side
    2,423.67x = 2,516,771.79
  5. Step 5: Solve for x
    x = 2,516,771.79/2,423.67
  6. Step 6: Final answer
    x = 1,038.41

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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.