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Finding the Fourth Proportional to 15,946.90, 23,893.90 and 11,243.98

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Solution

The fourth proportional to 15,946.90, 23,893.90 and 11,243.98 is: 16,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,946.90 : 23,893.90 = 11,243.98 : x
  2. Step 2: Convert to fraction form
    15,946.90/23,893.90 = 11,243.98/x
  3. Step 3: Cross multiply
    15,946.90x = 23,893.90 × 11,243.98
  4. Step 4: Simplify right side
    15,946.90x = 268,662,533.72
  5. Step 5: Solve for x
    x = 268,662,533.72/15,946.90
  6. Step 6: Final answer
    x = 16,847.32

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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.