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Finding the Fourth Proportional to 25,994.80, 38,999.40 and 17,246.80

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Solution

The fourth proportional to 25,994.80, 38,999.40 and 17,246.80 is: 25,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,994.80 : 38,999.40 = 17,246.80 : x
  2. Step 2: Convert to fraction form
    25,994.80/38,999.40 = 17,246.80/x
  3. Step 3: Cross multiply
    25,994.80x = 38,999.40 × 17,246.80
  4. Step 4: Simplify right side
    25,994.80x = 672,614,851.92
  5. Step 5: Solve for x
    x = 672,614,851.92/25,994.80
  6. Step 6: Final answer
    x = 25,874.98

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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.