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Finding the Fourth Proportional to 64,883.52, 97,310.40 and 18,141.12

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Solution

The fourth proportional to 64,883.52, 97,310.40 and 18,141.12 is: 27,207.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,883.52 : 97,310.40 = 18,141.12 : x
  2. Step 2: Convert to fraction form
    64,883.52/97,310.40 = 18,141.12/x
  3. Step 3: Cross multiply
    64,883.52x = 97,310.40 × 18,141.12
  4. Step 4: Simplify right side
    64,883.52x = 1,765,319,643.65
  5. Step 5: Solve for x
    x = 1,765,319,643.65/64,883.52
  6. Step 6: Final answer
    x = 27,207.52

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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.