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Finding the Fourth Proportional to 64,953.97, 97,419.98 and 18,196.09

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Solution

The fourth proportional to 64,953.97, 97,419.98 and 18,196.09 is: 27,291.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,953.97 : 97,419.98 = 18,196.09 : x
  2. Step 2: Convert to fraction form
    64,953.97/97,419.98 = 18,196.09/x
  3. Step 3: Cross multiply
    64,953.97x = 97,419.98 × 18,196.09
  4. Step 4: Simplify right side
    64,953.97x = 1,772,662,632.90
  5. Step 5: Solve for x
    x = 1,772,662,632.90/64,953.97
  6. Step 6: Final answer
    x = 27,291.06

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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.