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Finding the Fourth Proportional to 8,593,685.42, 11,890,513.73 and 7,493,410.98

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Solution

The fourth proportional to 8,593,685.42, 11,890,513.73 and 7,493,410.98 is: 10,368,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,593,685.42 : 11,890,513.73 = 7,493,410.98 : x
  2. Step 2: Convert to fraction form
    8,593,685.42/11,890,513.73 = 7,493,410.98/x
  3. Step 3: Cross multiply
    8,593,685.42x = 11,890,513.73 × 7,493,410.98
  4. Step 4: Simplify right side
    8,593,685.42x = 89,100,506,160,956.28
  5. Step 5: Solve for x
    x = 89,100,506,160,956.28/8,593,685.42
  6. Step 6: Final answer
    x = 10,368,136.82

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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.