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Finding the Fourth Proportional to 58,415.40, 87,644.70 and 23,380.20

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Solution

The fourth proportional to 58,415.40, 87,644.70 and 23,380.20 is: 35,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,415.40 : 87,644.70 = 23,380.20 : x
  2. Step 2: Convert to fraction form
    58,415.40/87,644.70 = 23,380.20/x
  3. Step 3: Cross multiply
    58,415.40x = 87,644.70 × 23,380.20
  4. Step 4: Simplify right side
    58,415.40x = 2,049,150,614.94
  5. Step 5: Solve for x
    x = 2,049,150,614.94/58,415.40
  6. Step 6: Final answer
    x = 35,078.95

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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.