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Finding the Fourth Proportional to 5,943.79, 8,915.73 and 1,561.24

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Solution

The fourth proportional to 5,943.79, 8,915.73 and 1,561.24 is: 2,341.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,943.79 : 8,915.73 = 1,561.24 : x
  2. Step 2: Convert to fraction form
    5,943.79/8,915.73 = 1,561.24/x
  3. Step 3: Cross multiply
    5,943.79x = 8,915.73 × 1,561.24
  4. Step 4: Simplify right side
    5,943.79x = 13,919,594.31
  5. Step 5: Solve for x
    x = 13,919,594.31/5,943.79
  6. Step 6: Final answer
    x = 2,341.87

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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.