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Finding the Fourth Proportional to 57,370.87, 86,055.90 and 33,980.50

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Solution

The fourth proportional to 57,370.87, 86,055.90 and 33,980.50 is: 50,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,370.87 : 86,055.90 = 33,980.50 : x
  2. Step 2: Convert to fraction form
    57,370.87/86,055.90 = 33,980.50/x
  3. Step 3: Cross multiply
    57,370.87x = 86,055.90 × 33,980.50
  4. Step 4: Simplify right side
    57,370.87x = 2,924,222,509.95
  5. Step 5: Solve for x
    x = 2,924,222,509.95/57,370.87
  6. Step 6: Final answer
    x = 50,970.51

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Double scale
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Similar ratio
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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.