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Finding the Fourth Proportional to 4,692.98, 7,037.68 and 1,918.16

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Solution

The fourth proportional to 4,692.98, 7,037.68 and 1,918.16 is: 2,876.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,692.98 : 7,037.68 = 1,918.16 : x
  2. Step 2: Convert to fraction form
    4,692.98/7,037.68 = 1,918.16/x
  3. Step 3: Cross multiply
    4,692.98x = 7,037.68 × 1,918.16
  4. Step 4: Simplify right side
    4,692.98x = 13,499,386.68
  5. Step 5: Solve for x
    x = 13,499,386.68/4,692.98
  6. Step 6: Final answer
    x = 2,876.51

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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.