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Finding the Fourth Proportional to 14,950.58, 20,628.07 and 9,639

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Solution

The fourth proportional to 14,950.58, 20,628.07 and 9,639 is: 13,299.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,950.58 : 20,628.07 = 9,639 : x
  2. Step 2: Convert to fraction form
    14,950.58/20,628.07 = 9,639/x
  3. Step 3: Cross multiply
    14,950.58x = 20,628.07 × 9,639
  4. Step 4: Simplify right side
    14,950.58x = 198,833,942.63
  5. Step 5: Solve for x
    x = 198,833,942.63/14,950.58
  6. Step 6: Final answer
    x = 13,299.42

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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.