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Finding the Fourth Proportional to 14,363.83, 21,555.31 and 6,968.83

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Solution

The fourth proportional to 14,363.83, 21,555.31 and 6,968.83 is: 10,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.83 : 21,555.31 = 6,968.83 : x
  2. Step 2: Convert to fraction form
    14,363.83/21,555.31 = 6,968.83/x
  3. Step 3: Cross multiply
    14,363.83x = 21,555.31 × 6,968.83
  4. Step 4: Simplify right side
    14,363.83x = 150,215,290.99
  5. Step 5: Solve for x
    x = 150,215,290.99/14,363.83
  6. Step 6: Final answer
    x = 10,457.89

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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.