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Finding the Fourth Proportional to 8,907.57, 12,264.30 and 7,844.60

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Solution

The fourth proportional to 8,907.57, 12,264.30 and 7,844.60 is: 10,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.57 : 12,264.30 = 7,844.60 : x
  2. Step 2: Convert to fraction form
    8,907.57/12,264.30 = 7,844.60/x
  3. Step 3: Cross multiply
    8,907.57x = 12,264.30 × 7,844.60
  4. Step 4: Simplify right side
    8,907.57x = 96,208,558.44
  5. Step 5: Solve for x
    x = 96,208,558.44/8,907.57
  6. Step 6: Final answer
    x = 10,800.76

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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.