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Finding the Fourth Proportional to 20,346.75, 30,658.76 and 16,730.00

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Solution

The fourth proportional to 20,346.75, 30,658.76 and 16,730.00 is: 25,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.75 : 30,658.76 = 16,730.00 : x
  2. Step 2: Convert to fraction form
    20,346.75/30,658.76 = 16,730.00/x
  3. Step 3: Cross multiply
    20,346.75x = 30,658.76 × 16,730.00
  4. Step 4: Simplify right side
    20,346.75x = 512,920,817.86
  5. Step 5: Solve for x
    x = 512,920,817.86/20,346.75
  6. Step 6: Final answer
    x = 25,208.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.