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Finding the Fourth Proportional to 14,980.95, 20,673.87 and 8,266.83

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Solution

The fourth proportional to 14,980.95, 20,673.87 and 8,266.83 is: 11,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.95 : 20,673.87 = 8,266.83 : x
  2. Step 2: Convert to fraction form
    14,980.95/20,673.87 = 8,266.83/x
  3. Step 3: Cross multiply
    14,980.95x = 20,673.87 × 8,266.83
  4. Step 4: Simplify right side
    14,980.95x = 170,907,368.73
  5. Step 5: Solve for x
    x = 170,907,368.73/14,980.95
  6. Step 6: Final answer
    x = 11,408.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.