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Finding the Fourth Proportional to 10,628.95, 14,668.97 and 7,935.49

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Solution

The fourth proportional to 10,628.95, 14,668.97 and 7,935.49 is: 10,951.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.95 : 14,668.97 = 7,935.49 : x
  2. Step 2: Convert to fraction form
    10,628.95/14,668.97 = 7,935.49/x
  3. Step 3: Cross multiply
    10,628.95x = 14,668.97 × 7,935.49
  4. Step 4: Simplify right side
    10,628.95x = 116,405,551.62
  5. Step 5: Solve for x
    x = 116,405,551.62/10,628.95
  6. Step 6: Final answer
    x = 10,951.75

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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.