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Finding the Fourth Proportional to 23,690.88, 32,693.60 and 13,080.80

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Solution

The fourth proportional to 23,690.88, 32,693.60 and 13,080.80 is: 18,051.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,690.88 : 32,693.60 = 13,080.80 : x
  2. Step 2: Convert to fraction form
    23,690.88/32,693.60 = 13,080.80/x
  3. Step 3: Cross multiply
    23,690.88x = 32,693.60 × 13,080.80
  4. Step 4: Simplify right side
    23,690.88x = 427,658,442.88
  5. Step 5: Solve for x
    x = 427,658,442.88/23,690.88
  6. Step 6: Final answer
    x = 18,051.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.