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Finding the Fourth Proportional to 18,696.07, 28,038.04 and 6,212.74

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Solution

The fourth proportional to 18,696.07, 28,038.04 and 6,212.74 is: 9,317.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696.07 : 28,038.04 = 6,212.74 : x
  2. Step 2: Convert to fraction form
    18,696.07/28,038.04 = 6,212.74/x
  3. Step 3: Cross multiply
    18,696.07x = 28,038.04 × 6,212.74
  4. Step 4: Simplify right side
    18,696.07x = 174,193,052.63
  5. Step 5: Solve for x
    x = 174,193,052.63/18,696.07
  6. Step 6: Final answer
    x = 9,317.09

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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.