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Finding the Fourth Proportional to 64,984.88, 97,480.77 and 18,241.40

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Solution

The fourth proportional to 64,984.88, 97,480.77 and 18,241.40 is: 27,363.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,984.88 : 97,480.77 = 18,241.40 : x
  2. Step 2: Convert to fraction form
    64,984.88/97,480.77 = 18,241.40/x
  3. Step 3: Cross multiply
    64,984.88x = 97,480.77 × 18,241.40
  4. Step 4: Simplify right side
    64,984.88x = 1,778,185,893.17
  5. Step 5: Solve for x
    x = 1,778,185,893.17/64,984.88
  6. Step 6: Final answer
    x = 27,363.07

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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.