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Finding the Fourth Proportional to 7,100.60, 10,644.68 and 2,938.01

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Solution

The fourth proportional to 7,100.60, 10,644.68 and 2,938.01 is: 4,404.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,100.60 : 10,644.68 = 2,938.01 : x
  2. Step 2: Convert to fraction form
    7,100.60/10,644.68 = 2,938.01/x
  3. Step 3: Cross multiply
    7,100.60x = 10,644.68 × 2,938.01
  4. Step 4: Simplify right side
    7,100.60x = 31,274,130.41
  5. Step 5: Solve for x
    x = 31,274,130.41/7,100.60
  6. Step 6: Final answer
    x = 4,404.44

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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.