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Finding the Fourth Proportional to 39,101.60, 58,661.04 and 19,390.88

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Solution

The fourth proportional to 39,101.60, 58,661.04 and 19,390.88 is: 29,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,101.60 : 58,661.04 = 19,390.88 : x
  2. Step 2: Convert to fraction form
    39,101.60/58,661.04 = 19,390.88/x
  3. Step 3: Cross multiply
    39,101.60x = 58,661.04 × 19,390.88
  4. Step 4: Simplify right side
    39,101.60x = 1,137,489,187.32
  5. Step 5: Solve for x
    x = 1,137,489,187.32/39,101.60
  6. Step 6: Final answer
    x = 29,090.60

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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.