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Finding the Fourth Proportional to 65,941.96, 98,916.96 and 21,573.40

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Solution

The fourth proportional to 65,941.96, 98,916.96 and 21,573.40 is: 32,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,941.96 : 98,916.96 = 21,573.40 : x
  2. Step 2: Convert to fraction form
    65,941.96/98,916.96 = 21,573.40/x
  3. Step 3: Cross multiply
    65,941.96x = 98,916.96 × 21,573.40
  4. Step 4: Simplify right side
    65,941.96x = 2,133,975,144.86
  5. Step 5: Solve for x
    x = 2,133,975,144.86/65,941.96
  6. Step 6: Final answer
    x = 32,361.42

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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.