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Finding the Fourth Proportional to 13,596.65, 18,763.27 and 7,628.32

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Solution

The fourth proportional to 13,596.65, 18,763.27 and 7,628.32 is: 10,527.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.65 : 18,763.27 = 7,628.32 : x
  2. Step 2: Convert to fraction form
    13,596.65/18,763.27 = 7,628.32/x
  3. Step 3: Cross multiply
    13,596.65x = 18,763.27 × 7,628.32
  4. Step 4: Simplify right side
    13,596.65x = 143,132,189.66
  5. Step 5: Solve for x
    x = 143,132,189.66/13,596.65
  6. Step 6: Final answer
    x = 10,527.02

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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.