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Finding the Fourth Proportional to 25,387.89, 35,035.26 and 14,209.89

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Solution

The fourth proportional to 25,387.89, 35,035.26 and 14,209.89 is: 19,609.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,387.89 : 35,035.26 = 14,209.89 : x
  2. Step 2: Convert to fraction form
    25,387.89/35,035.26 = 14,209.89/x
  3. Step 3: Cross multiply
    25,387.89x = 35,035.26 × 14,209.89
  4. Step 4: Simplify right side
    25,387.89x = 497,847,190.72
  5. Step 5: Solve for x
    x = 497,847,190.72/25,387.89
  6. Step 6: Final answer
    x = 19,609.63

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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.