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Finding the Fourth Proportional to 8,923.61, 13,384.86 and 3,376.86

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Solution

The fourth proportional to 8,923.61, 13,384.86 and 3,376.86 is: 5,065.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.61 : 13,384.86 = 3,376.86 : x
  2. Step 2: Convert to fraction form
    8,923.61/13,384.86 = 3,376.86/x
  3. Step 3: Cross multiply
    8,923.61x = 13,384.86 × 3,376.86
  4. Step 4: Simplify right side
    8,923.61x = 45,198,798.34
  5. Step 5: Solve for x
    x = 45,198,798.34/8,923.61
  6. Step 6: Final answer
    x = 5,065.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.