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Finding the Fourth Proportional to 23,986.34, 35,989.87 and 12,880.02

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Solution

The fourth proportional to 23,986.34, 35,989.87 and 12,880.02 is: 19,325.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,986.34 : 35,989.87 = 12,880.02 : x
  2. Step 2: Convert to fraction form
    23,986.34/35,989.87 = 12,880.02/x
  3. Step 3: Cross multiply
    23,986.34x = 35,989.87 × 12,880.02
  4. Step 4: Simplify right side
    23,986.34x = 463,550,245.40
  5. Step 5: Solve for x
    x = 463,550,245.40/23,986.34
  6. Step 6: Final answer
    x = 19,325.59

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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.