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Finding the Fourth Proportional to 42,777.20, 64,230.60 and 32,927.60

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Solution

The fourth proportional to 42,777.20, 64,230.60 and 32,927.60 is: 49,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,777.20 : 64,230.60 = 32,927.60 : x
  2. Step 2: Convert to fraction form
    42,777.20/64,230.60 = 32,927.60/x
  3. Step 3: Cross multiply
    42,777.20x = 64,230.60 × 32,927.60
  4. Step 4: Simplify right side
    42,777.20x = 2,114,959,504.56
  5. Step 5: Solve for x
    x = 2,114,959,504.56/42,777.20
  6. Step 6: Final answer
    x = 49,441.28

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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.