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Finding the Fourth Proportional to 13,765.01, 20,655.68 and 5,000.60

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Solution

The fourth proportional to 13,765.01, 20,655.68 and 5,000.60 is: 7,503.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.01 : 20,655.68 = 5,000.60 : x
  2. Step 2: Convert to fraction form
    13,765.01/20,655.68 = 5,000.60/x
  3. Step 3: Cross multiply
    13,765.01x = 20,655.68 × 5,000.60
  4. Step 4: Simplify right side
    13,765.01x = 103,290,820.04
  5. Step 5: Solve for x
    x = 103,290,820.04/13,765.01
  6. Step 6: Final answer
    x = 7,503.87

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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.