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Finding the Fourth Proportional to 57,912.48, 79,912.48 and 32,420.24

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Solution

The fourth proportional to 57,912.48, 79,912.48 and 32,420.24 is: 44,736.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,912.48 : 79,912.48 = 32,420.24 : x
  2. Step 2: Convert to fraction form
    57,912.48/79,912.48 = 32,420.24/x
  3. Step 3: Cross multiply
    57,912.48x = 79,912.48 × 32,420.24
  4. Step 4: Simplify right side
    57,912.48x = 2,590,781,780.60
  5. Step 5: Solve for x
    x = 2,590,781,780.60/57,912.48
  6. Step 6: Final answer
    x = 44,736.16

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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.