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Finding the Fourth Proportional to 57,021.96, 78,671.01 and 36,904.26

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Solution

The fourth proportional to 57,021.96, 78,671.01 and 36,904.26 is: 50,915.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.96 : 78,671.01 = 36,904.26 : x
  2. Step 2: Convert to fraction form
    57,021.96/78,671.01 = 36,904.26/x
  3. Step 3: Cross multiply
    57,021.96x = 78,671.01 × 36,904.26
  4. Step 4: Simplify right side
    57,021.96x = 2,903,295,407.50
  5. Step 5: Solve for x
    x = 2,903,295,407.50/57,021.96
  6. Step 6: Final answer
    x = 50,915.39

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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.