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Finding the Fourth Proportional to 8,760.94, 13,140.52 and 2,916.92

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Solution

The fourth proportional to 8,760.94, 13,140.52 and 2,916.92 is: 4,375.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.94 : 13,140.52 = 2,916.92 : x
  2. Step 2: Convert to fraction form
    8,760.94/13,140.52 = 2,916.92/x
  3. Step 3: Cross multiply
    8,760.94x = 13,140.52 × 2,916.92
  4. Step 4: Simplify right side
    8,760.94x = 38,329,845.60
  5. Step 5: Solve for x
    x = 38,329,845.60/8,760.94
  6. Step 6: Final answer
    x = 4,375.08

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1.5x scale

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.