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Finding the Fourth Proportional to 4,687.70, 7,026.06 and 2,606.70

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Solution

The fourth proportional to 4,687.70, 7,026.06 and 2,606.70 is: 3,907.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.70 : 7,026.06 = 2,606.70 : x
  2. Step 2: Convert to fraction form
    4,687.70/7,026.06 = 2,606.70/x
  3. Step 3: Cross multiply
    4,687.70x = 7,026.06 × 2,606.70
  4. Step 4: Simplify right side
    4,687.70x = 18,314,830.60
  5. Step 5: Solve for x
    x = 18,314,830.60/4,687.70
  6. Step 6: Final answer
    x = 3,907.00

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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.