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Finding the Fourth Proportional to 16,895.90, 25,328.17 and 8,015.40

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Solution

The fourth proportional to 16,895.90, 25,328.17 and 8,015.40 is: 12,015.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,895.90 : 25,328.17 = 8,015.40 : x
  2. Step 2: Convert to fraction form
    16,895.90/25,328.17 = 8,015.40/x
  3. Step 3: Cross multiply
    16,895.90x = 25,328.17 × 8,015.40
  4. Step 4: Simplify right side
    16,895.90x = 203,015,413.82
  5. Step 5: Solve for x
    x = 203,015,413.82/16,895.90
  6. Step 6: Final answer
    x = 12,015.66

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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.