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Finding the Fourth Proportional to 65,951.55, 98,916.93 and 18,570.20

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Solution

The fourth proportional to 65,951.55, 98,916.93 and 18,570.20 is: 27,852.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,951.55 : 98,916.93 = 18,570.20 : x
  2. Step 2: Convert to fraction form
    65,951.55/98,916.93 = 18,570.20/x
  3. Step 3: Cross multiply
    65,951.55x = 98,916.93 × 18,570.20
  4. Step 4: Simplify right side
    65,951.55x = 1,836,906,678.90
  5. Step 5: Solve for x
    x = 1,836,906,678.90/65,951.55
  6. Step 6: Final answer
    x = 27,852.37

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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.