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Finding the Fourth Proportional to 25,801, 38,669.12 and 13,954.30

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Solution

The fourth proportional to 25,801, 38,669.12 and 13,954.30 is: 20,913.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,801 : 38,669.12 = 13,954.30 : x
  2. Step 2: Convert to fraction form
    25,801/38,669.12 = 13,954.30/x
  3. Step 3: Cross multiply
    25,801x = 38,669.12 × 13,954.30
  4. Step 4: Simplify right side
    25,801x = 539,600,501.22
  5. Step 5: Solve for x
    x = 539,600,501.22/25,801
  6. Step 6: Final answer
    x = 20,913.94

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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.