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Finding the Fourth Proportional to 57,200.92, 78,930.90 and 33,322.60

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Solution

The fourth proportional to 57,200.92, 78,930.90 and 33,322.60 is: 45,981.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,200.92 : 78,930.90 = 33,322.60 : x
  2. Step 2: Convert to fraction form
    57,200.92/78,930.90 = 33,322.60/x
  3. Step 3: Cross multiply
    57,200.92x = 78,930.90 × 33,322.60
  4. Step 4: Simplify right side
    57,200.92x = 2,630,182,808.34
  5. Step 5: Solve for x
    x = 2,630,182,808.34/57,200.92
  6. Step 6: Final answer
    x = 45,981.48

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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.