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Finding the Fourth Proportional to 9,608.76, 14,385.06 and 8,686.44

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Solution

The fourth proportional to 9,608.76, 14,385.06 and 8,686.44 is: 13,004.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,608.76 : 14,385.06 = 8,686.44 : x
  2. Step 2: Convert to fraction form
    9,608.76/14,385.06 = 8,686.44/x
  3. Step 3: Cross multiply
    9,608.76x = 14,385.06 × 8,686.44
  4. Step 4: Simplify right side
    9,608.76x = 124,954,960.59
  5. Step 5: Solve for x
    x = 124,954,960.59/9,608.76
  6. Step 6: Final answer
    x = 13,004.28

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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.