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Finding the Fourth Proportional to 14,574.99, 20,121.17 and 10,329.58

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Solution

The fourth proportional to 14,574.99, 20,121.17 and 10,329.58 is: 14,260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.99 : 20,121.17 = 10,329.58 : x
  2. Step 2: Convert to fraction form
    14,574.99/20,121.17 = 10,329.58/x
  3. Step 3: Cross multiply
    14,574.99x = 20,121.17 × 10,329.58
  4. Step 4: Simplify right side
    14,574.99x = 207,843,235.21
  5. Step 5: Solve for x
    x = 207,843,235.21/14,574.99
  6. Step 6: Final answer
    x = 14,260.27

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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.