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Finding the Fourth Proportional to 46,172.63, 69,258.63 and 12,892.70

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Solution

The fourth proportional to 46,172.63, 69,258.63 and 12,892.70 is: 19,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,172.63 : 69,258.63 = 12,892.70 : x
  2. Step 2: Convert to fraction form
    46,172.63/69,258.63 = 12,892.70/x
  3. Step 3: Cross multiply
    46,172.63x = 69,258.63 × 12,892.70
  4. Step 4: Simplify right side
    46,172.63x = 892,930,739.00
  5. Step 5: Solve for x
    x = 892,930,739.00/46,172.63
  6. Step 6: Final answer
    x = 19,338.96

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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.