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Finding the Fourth Proportional to 64,954.35, 97,420.54 and 18,196.47

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Solution

The fourth proportional to 64,954.35, 97,420.54 and 18,196.47 is: 27,291.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,954.35 : 97,420.54 = 18,196.47 : x
  2. Step 2: Convert to fraction form
    64,954.35/97,420.54 = 18,196.47/x
  3. Step 3: Cross multiply
    64,954.35x = 97,420.54 × 18,196.47
  4. Step 4: Simplify right side
    64,954.35x = 1,772,709,933.49
  5. Step 5: Solve for x
    x = 1,772,709,933.49/64,954.35
  6. Step 6: Final answer
    x = 27,291.63

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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.