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Finding the Fourth Proportional to 8,993.40, 12,410.28 and 5,014.40

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Solution

The fourth proportional to 8,993.40, 12,410.28 and 5,014.40 is: 6,919.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.40 : 12,410.28 = 5,014.40 : x
  2. Step 2: Convert to fraction form
    8,993.40/12,410.28 = 5,014.40/x
  3. Step 3: Cross multiply
    8,993.40x = 12,410.28 × 5,014.40
  4. Step 4: Simplify right side
    8,993.40x = 62,230,108.03
  5. Step 5: Solve for x
    x = 62,230,108.03/8,993.40
  6. Step 6: Final answer
    x = 6,919.53

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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.