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Finding the Fourth Proportional to 25,164.80, 37,722.40 and 14,076.80

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Solution

The fourth proportional to 25,164.80, 37,722.40 and 14,076.80 is: 21,101.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,164.80 : 37,722.40 = 14,076.80 : x
  2. Step 2: Convert to fraction form
    25,164.80/37,722.40 = 14,076.80/x
  3. Step 3: Cross multiply
    25,164.80x = 37,722.40 × 14,076.80
  4. Step 4: Simplify right side
    25,164.80x = 531,010,680.32
  5. Step 5: Solve for x
    x = 531,010,680.32/25,164.80
  6. Step 6: Final answer
    x = 21,101.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.