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Finding the Fourth Proportional to 19,176, 28,767.63 and 6,699.57

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Solution

The fourth proportional to 19,176, 28,767.63 and 6,699.57 is: 10,050.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176 : 28,767.63 = 6,699.57 : x
  2. Step 2: Convert to fraction form
    19,176/28,767.63 = 6,699.57/x
  3. Step 3: Cross multiply
    19,176x = 28,767.63 × 6,699.57
  4. Step 4: Simplify right side
    19,176x = 192,730,750.92
  5. Step 5: Solve for x
    x = 192,730,750.92/19,176
  6. Step 6: Final answer
    x = 10,050.62

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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.