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Finding the Fourth Proportional to 8,994.56, 12,411.68 and 5,015.68

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Solution

The fourth proportional to 8,994.56, 12,411.68 and 5,015.68 is: 6,921.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.56 : 12,411.68 = 5,015.68 : x
  2. Step 2: Convert to fraction form
    8,994.56/12,411.68 = 5,015.68/x
  3. Step 3: Cross multiply
    8,994.56x = 12,411.68 × 5,015.68
  4. Step 4: Simplify right side
    8,994.56x = 62,253,015.14
  5. Step 5: Solve for x
    x = 62,253,015.14/8,994.56
  6. Step 6: Final answer
    x = 6,921.19

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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.