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Finding the Fourth Proportional to 8,659,231.84, 11,949,561.12 and 4,791,750.40

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Solution

The fourth proportional to 8,659,231.84, 11,949,561.12 and 4,791,750.40 is: 6,612,516.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659,231.84 : 11,949,561.12 = 4,791,750.40 : x
  2. Step 2: Convert to fraction form
    8,659,231.84/11,949,561.12 = 4,791,750.40/x
  3. Step 3: Cross multiply
    8,659,231.84x = 11,949,561.12 × 4,791,750.40
  4. Step 4: Simplify right side
    8,659,231.84x = 57,259,314,276,584.45
  5. Step 5: Solve for x
    x = 57,259,314,276,584.45/8,659,231.84
  6. Step 6: Final answer
    x = 6,612,516.60

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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.