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Finding the Fourth Proportional to 65,003.52, 97,497.72 and 18,260.40

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Solution

The fourth proportional to 65,003.52, 97,497.72 and 18,260.40 is: 27,388.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,003.52 : 97,497.72 = 18,260.40 : x
  2. Step 2: Convert to fraction form
    65,003.52/97,497.72 = 18,260.40/x
  3. Step 3: Cross multiply
    65,003.52x = 97,497.72 × 18,260.40
  4. Step 4: Simplify right side
    65,003.52x = 1,780,347,366.29
  5. Step 5: Solve for x
    x = 1,780,347,366.29/65,003.52
  6. Step 6: Final answer
    x = 27,388.48

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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.