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Finding the Fourth Proportional to 49,636.63, 74,454.94 and 12,700.63

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Solution

The fourth proportional to 49,636.63, 74,454.94 and 12,700.63 is: 19,050.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,636.63 : 74,454.94 = 12,700.63 : x
  2. Step 2: Convert to fraction form
    49,636.63/74,454.94 = 12,700.63/x
  3. Step 3: Cross multiply
    49,636.63x = 74,454.94 × 12,700.63
  4. Step 4: Simplify right side
    49,636.63x = 945,624,272.34
  5. Step 5: Solve for x
    x = 945,624,272.34/49,636.63
  6. Step 6: Final answer
    x = 19,050.94

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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.