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Finding the Fourth Proportional to 8,603.49, 11,874.03 and 5,019.63

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Solution

The fourth proportional to 8,603.49, 11,874.03 and 5,019.63 is: 6,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.49 : 11,874.03 = 5,019.63 : x
  2. Step 2: Convert to fraction form
    8,603.49/11,874.03 = 5,019.63/x
  3. Step 3: Cross multiply
    8,603.49x = 11,874.03 × 5,019.63
  4. Step 4: Simplify right side
    8,603.49x = 59,603,237.21
  5. Step 5: Solve for x
    x = 59,603,237.21/8,603.49
  6. Step 6: Final answer
    x = 6,927.80

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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.