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Finding the Fourth Proportional to 64,774.36, 97,161.90 and 18,027.28

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Solution

The fourth proportional to 64,774.36, 97,161.90 and 18,027.28 is: 27,041.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,774.36 : 97,161.90 = 18,027.28 : x
  2. Step 2: Convert to fraction form
    64,774.36/97,161.90 = 18,027.28/x
  3. Step 3: Cross multiply
    64,774.36x = 97,161.90 × 18,027.28
  4. Step 4: Simplify right side
    64,774.36x = 1,751,564,776.63
  5. Step 5: Solve for x
    x = 1,751,564,776.63/64,774.36
  6. Step 6: Final answer
    x = 27,041.02

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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.