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Finding the Fourth Proportional to 76,003.88, 114,026.70 and 31,651.40

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Solution

The fourth proportional to 76,003.88, 114,026.70 and 31,651.40 is: 47,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,003.88 : 114,026.70 = 31,651.40 : x
  2. Step 2: Convert to fraction form
    76,003.88/114,026.70 = 31,651.40/x
  3. Step 3: Cross multiply
    76,003.88x = 114,026.70 × 31,651.40
  4. Step 4: Simplify right side
    76,003.88x = 3,609,104,692.38
  5. Step 5: Solve for x
    x = 3,609,104,692.38/76,003.88
  6. Step 6: Final answer
    x = 47,485.80

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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.