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Finding the Fourth Proportional to 64,588.54, 96,901.34 and 27,129.35

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Solution

The fourth proportional to 64,588.54, 96,901.34 and 27,129.35 is: 40,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,588.54 : 96,901.34 = 27,129.35 : x
  2. Step 2: Convert to fraction form
    64,588.54/96,901.34 = 27,129.35/x
  3. Step 3: Cross multiply
    64,588.54x = 96,901.34 × 27,129.35
  4. Step 4: Simplify right side
    64,588.54x = 2,628,869,748.18
  5. Step 5: Solve for x
    x = 2,628,869,748.18/64,588.54
  6. Step 6: Final answer
    x = 40,701.80

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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.