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Finding the Fourth Proportional to 39,899.03, 59,830.15 and 11,809.04

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Solution

The fourth proportional to 39,899.03, 59,830.15 and 11,809.04 is: 17,708.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,899.03 : 59,830.15 = 11,809.04 : x
  2. Step 2: Convert to fraction form
    39,899.03/59,830.15 = 11,809.04/x
  3. Step 3: Cross multiply
    39,899.03x = 59,830.15 × 11,809.04
  4. Step 4: Simplify right side
    39,899.03x = 706,536,634.56
  5. Step 5: Solve for x
    x = 706,536,634.56/39,899.03
  6. Step 6: Final answer
    x = 17,708.12

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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.