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Finding the Fourth Proportional to 19,089.61, 28,634.41 and 5,943.31

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Solution

The fourth proportional to 19,089.61, 28,634.41 and 5,943.31 is: 8,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.61 : 28,634.41 = 5,943.31 : x
  2. Step 2: Convert to fraction form
    19,089.61/28,634.41 = 5,943.31/x
  3. Step 3: Cross multiply
    19,089.61x = 28,634.41 × 5,943.31
  4. Step 4: Simplify right side
    19,089.61x = 170,183,111.14
  5. Step 5: Solve for x
    x = 170,183,111.14/19,089.61
  6. Step 6: Final answer
    x = 8,914.96

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1.5x scale

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.