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Finding the Fourth Proportional to 16,698.96, 23,047.34 and 12,712.55

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Solution

The fourth proportional to 16,698.96, 23,047.34 and 12,712.55 is: 17,545.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,698.96 : 23,047.34 = 12,712.55 : x
  2. Step 2: Convert to fraction form
    16,698.96/23,047.34 = 12,712.55/x
  3. Step 3: Cross multiply
    16,698.96x = 23,047.34 × 12,712.55
  4. Step 4: Simplify right side
    16,698.96x = 292,990,283.32
  5. Step 5: Solve for x
    x = 292,990,283.32/16,698.96
  6. Step 6: Final answer
    x = 17,545.42

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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.