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Finding the Fourth Proportional to 19,124.90, 26,391.83 and 10,626.80

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Solution

The fourth proportional to 19,124.90, 26,391.83 and 10,626.80 is: 14,664.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,124.90 : 26,391.83 = 10,626.80 : x
  2. Step 2: Convert to fraction form
    19,124.90/26,391.83 = 10,626.80/x
  3. Step 3: Cross multiply
    19,124.90x = 26,391.83 × 10,626.80
  4. Step 4: Simplify right side
    19,124.90x = 280,460,781.83
  5. Step 5: Solve for x
    x = 280,460,781.83/19,124.90
  6. Step 6: Final answer
    x = 14,664.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.