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Finding the Fourth Proportional to 13,596.84, 18,763.74 and 7,628.58

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Solution

The fourth proportional to 13,596.84, 18,763.74 and 7,628.58 is: 10,527.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.84 : 18,763.74 = 7,628.58 : x
  2. Step 2: Convert to fraction form
    13,596.84/18,763.74 = 7,628.58/x
  3. Step 3: Cross multiply
    13,596.84x = 18,763.74 × 7,628.58
  4. Step 4: Simplify right side
    13,596.84x = 143,140,691.69
  5. Step 5: Solve for x
    x = 143,140,691.69/13,596.84
  6. Step 6: Final answer
    x = 10,527.50

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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.