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Finding the Fourth Proportional to 65,454.72, 98,187.69 and 18,069.81

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Solution

The fourth proportional to 65,454.72, 98,187.69 and 18,069.81 is: 27,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,454.72 : 98,187.69 = 18,069.81 : x
  2. Step 2: Convert to fraction form
    65,454.72/98,187.69 = 18,069.81/x
  3. Step 3: Cross multiply
    65,454.72x = 98,187.69 × 18,069.81
  4. Step 4: Simplify right side
    65,454.72x = 1,774,232,902.64
  5. Step 5: Solve for x
    x = 1,774,232,902.64/65,454.72
  6. Step 6: Final answer
    x = 27,106.26

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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.