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Finding the Fourth Proportional to 19,124.01, 28,696.95 and 7,435.71

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Solution

The fourth proportional to 19,124.01, 28,696.95 and 7,435.71 is: 11,157.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,124.01 : 28,696.95 = 7,435.71 : x
  2. Step 2: Convert to fraction form
    19,124.01/28,696.95 = 7,435.71/x
  3. Step 3: Cross multiply
    19,124.01x = 28,696.95 × 7,435.71
  4. Step 4: Simplify right side
    19,124.01x = 213,382,198.08
  5. Step 5: Solve for x
    x = 213,382,198.08/19,124.01
  6. Step 6: Final answer
    x = 11,157.82

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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.