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Finding the Fourth Proportional to 65,551.65, 98,331.14 and 18,803.25

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Solution

The fourth proportional to 65,551.65, 98,331.14 and 18,803.25 is: 28,205.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,551.65 : 98,331.14 = 18,803.25 : x
  2. Step 2: Convert to fraction form
    65,551.65/98,331.14 = 18,803.25/x
  3. Step 3: Cross multiply
    65,551.65x = 98,331.14 × 18,803.25
  4. Step 4: Simplify right side
    65,551.65x = 1,848,944,914.19
  5. Step 5: Solve for x
    x = 1,848,944,914.19/65,551.65
  6. Step 6: Final answer
    x = 28,205.92

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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.