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Finding the Fourth Proportional to 64,751.91, 97,133.36 and 18,004.78

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Solution

The fourth proportional to 64,751.91, 97,133.36 and 18,004.78 is: 27,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,751.91 : 97,133.36 = 18,004.78 : x
  2. Step 2: Convert to fraction form
    64,751.91/97,133.36 = 18,004.78/x
  3. Step 3: Cross multiply
    64,751.91x = 97,133.36 × 18,004.78
  4. Step 4: Simplify right side
    64,751.91x = 1,748,864,910.13
  5. Step 5: Solve for x
    x = 1,748,864,910.13/64,751.91
  6. Step 6: Final answer
    x = 27,008.70

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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.