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Finding the Fourth Proportional to 8,603.08, 11,872.74 and 6,503.56

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Solution

The fourth proportional to 8,603.08, 11,872.74 and 6,503.56 is: 8,975.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.08 : 11,872.74 = 6,503.56 : x
  2. Step 2: Convert to fraction form
    8,603.08/11,872.74 = 6,503.56/x
  3. Step 3: Cross multiply
    8,603.08x = 11,872.74 × 6,503.56
  4. Step 4: Simplify right side
    8,603.08x = 77,215,076.95
  5. Step 5: Solve for x
    x = 77,215,076.95/8,603.08
  6. Step 6: Final answer
    x = 8,975.28

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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.