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Finding the Fourth Proportional to 8,603.91, 12,904.48 and 2,362.48

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Solution

The fourth proportional to 8,603.91, 12,904.48 and 2,362.48 is: 3,543.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.91 : 12,904.48 = 2,362.48 : x
  2. Step 2: Convert to fraction form
    8,603.91/12,904.48 = 2,362.48/x
  3. Step 3: Cross multiply
    8,603.91x = 12,904.48 × 2,362.48
  4. Step 4: Simplify right side
    8,603.91x = 30,486,546.60
  5. Step 5: Solve for x
    x = 30,486,546.60/8,603.91
  6. Step 6: Final answer
    x = 3,543.34

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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.