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Finding the Fourth Proportional to 8,953.26, 12,355.61 and 4,974.75

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Solution

The fourth proportional to 8,953.26, 12,355.61 and 4,974.75 is: 6,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.26 : 12,355.61 = 4,974.75 : x
  2. Step 2: Convert to fraction form
    8,953.26/12,355.61 = 4,974.75/x
  3. Step 3: Cross multiply
    8,953.26x = 12,355.61 × 4,974.75
  4. Step 4: Simplify right side
    8,953.26x = 61,466,070.85
  5. Step 5: Solve for x
    x = 61,466,070.85/8,953.26
  6. Step 6: Final answer
    x = 6,865.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.