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Finding the Fourth Proportional to 57,203.70, 85,796.37 and 15,640.98

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Solution

The fourth proportional to 57,203.70, 85,796.37 and 15,640.98 is: 23,458.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,203.70 : 85,796.37 = 15,640.98 : x
  2. Step 2: Convert to fraction form
    57,203.70/85,796.37 = 15,640.98/x
  3. Step 3: Cross multiply
    57,203.70x = 85,796.37 × 15,640.98
  4. Step 4: Simplify right side
    57,203.70x = 1,341,939,307.24
  5. Step 5: Solve for x
    x = 1,341,939,307.24/57,203.70
  6. Step 6: Final answer
    x = 23,458.96

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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.