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Finding the Fourth Proportional to 8,994.79, 12,412.20 and 5,016.13

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Solution

The fourth proportional to 8,994.79, 12,412.20 and 5,016.13 is: 6,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.79 : 12,412.20 = 5,016.13 : x
  2. Step 2: Convert to fraction form
    8,994.79/12,412.20 = 5,016.13/x
  3. Step 3: Cross multiply
    8,994.79x = 12,412.20 × 5,016.13
  4. Step 4: Simplify right side
    8,994.79x = 62,261,208.79
  5. Step 5: Solve for x
    x = 62,261,208.79/8,994.79
  6. Step 6: Final answer
    x = 6,921.92

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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.