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Finding the Fourth Proportional to 65,817.60, 98,749.44 and 19,073.28

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Solution

The fourth proportional to 65,817.60, 98,749.44 and 19,073.28 is: 28,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,817.60 : 98,749.44 = 19,073.28 : x
  2. Step 2: Convert to fraction form
    65,817.60/98,749.44 = 19,073.28/x
  3. Step 3: Cross multiply
    65,817.60x = 98,749.44 × 19,073.28
  4. Step 4: Simplify right side
    65,817.60x = 1,883,475,718.96
  5. Step 5: Solve for x
    x = 1,883,475,718.96/65,817.60
  6. Step 6: Final answer
    x = 28,616.60

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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.