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Finding the Fourth Proportional to 4,985.84, 7,477.01 and 1,474.91

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Solution

The fourth proportional to 4,985.84, 7,477.01 and 1,474.91 is: 2,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.84 : 7,477.01 = 1,474.91 : x
  2. Step 2: Convert to fraction form
    4,985.84/7,477.01 = 1,474.91/x
  3. Step 3: Cross multiply
    4,985.84x = 7,477.01 × 1,474.91
  4. Step 4: Simplify right side
    4,985.84x = 11,027,916.82
  5. Step 5: Solve for x
    x = 11,027,916.82/4,985.84
  6. Step 6: Final answer
    x = 2,211.85

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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.