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Finding the Fourth Proportional to 25,438.79, 35,105.51 and 14,260.79

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Solution

The fourth proportional to 25,438.79, 35,105.51 and 14,260.79 is: 19,679.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,438.79 : 35,105.51 = 14,260.79 : x
  2. Step 2: Convert to fraction form
    25,438.79/35,105.51 = 14,260.79/x
  3. Step 3: Cross multiply
    25,438.79x = 35,105.51 × 14,260.79
  4. Step 4: Simplify right side
    25,438.79x = 500,632,429.37
  5. Step 5: Solve for x
    x = 500,632,429.37/25,438.79
  6. Step 6: Final answer
    x = 19,679.88

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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.