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Finding the Fourth Proportional to 14,252.77, 19,668.68 and 7,965.15

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Solution

The fourth proportional to 14,252.77, 19,668.68 and 7,965.15 is: 10,991.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,252.77 : 19,668.68 = 7,965.15 : x
  2. Step 2: Convert to fraction form
    14,252.77/19,668.68 = 7,965.15/x
  3. Step 3: Cross multiply
    14,252.77x = 19,668.68 × 7,965.15
  4. Step 4: Simplify right side
    14,252.77x = 156,663,986.50
  5. Step 5: Solve for x
    x = 156,663,986.50/14,252.77
  6. Step 6: Final answer
    x = 10,991.83

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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.