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Finding the Fourth Proportional to 23,662.89, 35,484.30 and 12,986.55

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Solution

The fourth proportional to 23,662.89, 35,484.30 and 12,986.55 is: 19,474.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,662.89 : 35,484.30 = 12,986.55 : x
  2. Step 2: Convert to fraction form
    23,662.89/35,484.30 = 12,986.55/x
  3. Step 3: Cross multiply
    23,662.89x = 35,484.30 × 12,986.55
  4. Step 4: Simplify right side
    23,662.89x = 460,818,636.17
  5. Step 5: Solve for x
    x = 460,818,636.17/23,662.89
  6. Step 6: Final answer
    x = 19,474.32

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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.