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Finding the Fourth Proportional to 57,148.74, 78,866.46 and 33,276.42

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Solution

The fourth proportional to 57,148.74, 78,866.46 and 33,276.42 is: 45,922.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,148.74 : 78,866.46 = 33,276.42 : x
  2. Step 2: Convert to fraction form
    57,148.74/78,866.46 = 33,276.42/x
  3. Step 3: Cross multiply
    57,148.74x = 78,866.46 × 33,276.42
  4. Step 4: Simplify right side
    57,148.74x = 2,624,393,446.87
  5. Step 5: Solve for x
    x = 2,624,393,446.87/57,148.74
  6. Step 6: Final answer
    x = 45,922.16

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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.