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Finding the Fourth Proportional to 61,649.37, 85,134.90 and 58,290.92

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Solution

The fourth proportional to 61,649.37, 85,134.90 and 58,290.92 is: 80,497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,649.37 : 85,134.90 = 58,290.92 : x
  2. Step 2: Convert to fraction form
    61,649.37/85,134.90 = 58,290.92/x
  3. Step 3: Cross multiply
    61,649.37x = 85,134.90 × 58,290.92
  4. Step 4: Simplify right side
    61,649.37x = 4,962,591,219.43
  5. Step 5: Solve for x
    x = 4,962,591,219.43/61,649.37
  6. Step 6: Final answer
    x = 80,497.03

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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.