Home / 25,120.12-34,664.87-14,218.02

Finding the Fourth Proportional to 25,120.12, 34,664.87 and 14,218.02

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Solution

The fourth proportional to 25,120.12, 34,664.87 and 14,218.02 is: 19,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,120.12 : 34,664.87 = 14,218.02 : x
  2. Step 2: Convert to fraction form
    25,120.12/34,664.87 = 14,218.02/x
  3. Step 3: Cross multiply
    25,120.12x = 34,664.87 × 14,218.02
  4. Step 4: Simplify right side
    25,120.12x = 492,865,976.34
  5. Step 5: Solve for x
    x = 492,865,976.34/25,120.12
  6. Step 6: Final answer
    x = 19,620.37

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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.