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Finding the Fourth Proportional to 57,213.69, 85,820.60 and 23,915.53

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Solution

The fourth proportional to 57,213.69, 85,820.60 and 23,915.53 is: 35,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,213.69 : 85,820.60 = 23,915.53 : x
  2. Step 2: Convert to fraction form
    57,213.69/85,820.60 = 23,915.53/x
  3. Step 3: Cross multiply
    57,213.69x = 85,820.60 × 23,915.53
  4. Step 4: Simplify right side
    57,213.69x = 2,052,445,133.92
  5. Step 5: Solve for x
    x = 2,052,445,133.92/57,213.69
  6. Step 6: Final answer
    x = 35,873.32

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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.