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Finding the Fourth Proportional to 8,994.51, 12,412.08 and 5,015.43

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Solution

The fourth proportional to 8,994.51, 12,412.08 and 5,015.43 is: 6,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.51 : 12,412.08 = 5,015.43 : x
  2. Step 2: Convert to fraction form
    8,994.51/12,412.08 = 5,015.43/x
  3. Step 3: Cross multiply
    8,994.51x = 12,412.08 × 5,015.43
  4. Step 4: Simplify right side
    8,994.51x = 62,251,918.39
  5. Step 5: Solve for x
    x = 62,251,918.39/8,994.51
  6. Step 6: Final answer
    x = 6,921.10

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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.