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Finding the Fourth Proportional to 14,762.21, 20,379.11 and 10,228.33

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Solution

The fourth proportional to 14,762.21, 20,379.11 and 10,228.33 is: 14,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,762.21 : 20,379.11 = 10,228.33 : x
  2. Step 2: Convert to fraction form
    14,762.21/20,379.11 = 10,228.33/x
  3. Step 3: Cross multiply
    14,762.21x = 20,379.11 × 10,228.33
  4. Step 4: Simplify right side
    14,762.21x = 208,444,236.81
  5. Step 5: Solve for x
    x = 208,444,236.81/14,762.21
  6. Step 6: Final answer
    x = 14,120.13

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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.