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Finding the Fourth Proportional to 13,956.56, 19,260.12 and 7,668.92

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Solution

The fourth proportional to 13,956.56, 19,260.12 and 7,668.92 is: 10,583.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.56 : 19,260.12 = 7,668.92 : x
  2. Step 2: Convert to fraction form
    13,956.56/19,260.12 = 7,668.92/x
  3. Step 3: Cross multiply
    13,956.56x = 19,260.12 × 7,668.92
  4. Step 4: Simplify right side
    13,956.56x = 147,704,319.47
  5. Step 5: Solve for x
    x = 147,704,319.47/13,956.56
  6. Step 6: Final answer
    x = 10,583.15

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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.