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Finding the Fourth Proportional to 1,925.49, 2,887.73 and 692.67

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Solution

The fourth proportional to 1,925.49, 2,887.73 and 692.67 is: 1,038.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.49 : 2,887.73 = 692.67 : x
  2. Step 2: Convert to fraction form
    1,925.49/2,887.73 = 692.67/x
  3. Step 3: Cross multiply
    1,925.49x = 2,887.73 × 692.67
  4. Step 4: Simplify right side
    1,925.49x = 2,000,243.94
  5. Step 5: Solve for x
    x = 2,000,243.94/1,925.49
  6. Step 6: Final answer
    x = 1,038.82

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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.