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Finding the Fourth Proportional to 8,610.79, 12,916.24 and 3,064.35

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Solution

The fourth proportional to 8,610.79, 12,916.24 and 3,064.35 is: 4,596.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.79 : 12,916.24 = 3,064.35 : x
  2. Step 2: Convert to fraction form
    8,610.79/12,916.24 = 3,064.35/x
  3. Step 3: Cross multiply
    8,610.79x = 12,916.24 × 3,064.35
  4. Step 4: Simplify right side
    8,610.79x = 39,579,880.04
  5. Step 5: Solve for x
    x = 39,579,880.04/8,610.79
  6. Step 6: Final answer
    x = 4,596.54

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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.