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Finding the Fourth Proportional to 57,420.75, 79,213.03 and 37,283.95

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Solution

The fourth proportional to 57,420.75, 79,213.03 and 37,283.95 is: 51,433.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,420.75 : 79,213.03 = 37,283.95 : x
  2. Step 2: Convert to fraction form
    57,420.75/79,213.03 = 37,283.95/x
  3. Step 3: Cross multiply
    57,420.75x = 79,213.03 × 37,283.95
  4. Step 4: Simplify right side
    57,420.75x = 2,953,374,649.87
  5. Step 5: Solve for x
    x = 2,953,374,649.87/57,420.75
  6. Step 6: Final answer
    x = 51,433.93

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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.