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Finding the Fourth Proportional to 23,172.27, 31,965.40 and 14,100.40

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Solution

The fourth proportional to 23,172.27, 31,965.40 and 14,100.40 is: 19,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,172.27 : 31,965.40 = 14,100.40 : x
  2. Step 2: Convert to fraction form
    23,172.27/31,965.40 = 14,100.40/x
  3. Step 3: Cross multiply
    23,172.27x = 31,965.40 × 14,100.40
  4. Step 4: Simplify right side
    23,172.27x = 450,724,926.16
  5. Step 5: Solve for x
    x = 450,724,926.16/23,172.27
  6. Step 6: Final answer
    x = 19,451.05

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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.