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Finding the Fourth Proportional to 14,090.96, 21,026.18 and 14,008.95

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Solution

The fourth proportional to 14,090.96, 21,026.18 and 14,008.95 is: 20,903.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.96 : 21,026.18 = 14,008.95 : x
  2. Step 2: Convert to fraction form
    14,090.96/21,026.18 = 14,008.95/x
  3. Step 3: Cross multiply
    14,090.96x = 21,026.18 × 14,008.95
  4. Step 4: Simplify right side
    14,090.96x = 294,554,739.33
  5. Step 5: Solve for x
    x = 294,554,739.33/14,090.96
  6. Step 6: Final answer
    x = 20,903.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.