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Finding the Fourth Proportional to 13,732.03, 18,950.07 and 7,763.74

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Solution

The fourth proportional to 13,732.03, 18,950.07 and 7,763.74 is: 10,713.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732.03 : 18,950.07 = 7,763.74 : x
  2. Step 2: Convert to fraction form
    13,732.03/18,950.07 = 7,763.74/x
  3. Step 3: Cross multiply
    13,732.03x = 18,950.07 × 7,763.74
  4. Step 4: Simplify right side
    13,732.03x = 147,123,416.46
  5. Step 5: Solve for x
    x = 147,123,416.46/13,732.03
  6. Step 6: Final answer
    x = 10,713.89

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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.