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Finding the Fourth Proportional to 23,756.54, 32,782.65 and 13,145.64

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Solution

The fourth proportional to 23,756.54, 32,782.65 and 13,145.64 is: 18,140.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,756.54 : 32,782.65 = 13,145.64 : x
  2. Step 2: Convert to fraction form
    23,756.54/32,782.65 = 13,145.64/x
  3. Step 3: Cross multiply
    23,756.54x = 32,782.65 × 13,145.64
  4. Step 4: Simplify right side
    23,756.54x = 430,948,915.15
  5. Step 5: Solve for x
    x = 430,948,915.15/23,756.54
  6. Step 6: Final answer
    x = 18,140.23

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