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Finding the Fourth Proportional to 36,699.60, 55,038.60 and 10,406.64

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Solution

The fourth proportional to 36,699.60, 55,038.60 and 10,406.64 is: 15,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,699.60 : 55,038.60 = 10,406.64 : x
  2. Step 2: Convert to fraction form
    36,699.60/55,038.60 = 10,406.64/x
  3. Step 3: Cross multiply
    36,699.60x = 55,038.60 × 10,406.64
  4. Step 4: Simplify right side
    36,699.60x = 572,766,896.30
  5. Step 5: Solve for x
    x = 572,766,896.30/36,699.60
  6. Step 6: Final answer
    x = 15,606.90

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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.