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Finding the Fourth Proportional to 30,775.92, 46,148.49 and 15,980.73

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Solution

The fourth proportional to 30,775.92, 46,148.49 and 15,980.73 is: 23,963.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,775.92 : 46,148.49 = 15,980.73 : x
  2. Step 2: Convert to fraction form
    30,775.92/46,148.49 = 15,980.73/x
  3. Step 3: Cross multiply
    30,775.92x = 46,148.49 × 15,980.73
  4. Step 4: Simplify right side
    30,775.92x = 737,486,558.60
  5. Step 5: Solve for x
    x = 737,486,558.60/30,775.92
  6. Step 6: Final answer
    x = 23,963.10

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Double scale
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Similar ratio
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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.