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Finding the Fourth Proportional to 25,905.80, 38,863.98 and 14,817.80

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Solution

The fourth proportional to 25,905.80, 38,863.98 and 14,817.80 is: 22,229.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.80 : 38,863.98 = 14,817.80 : x
  2. Step 2: Convert to fraction form
    25,905.80/38,863.98 = 14,817.80/x
  3. Step 3: Cross multiply
    25,905.80x = 38,863.98 × 14,817.80
  4. Step 4: Simplify right side
    25,905.80x = 575,878,682.84
  5. Step 5: Solve for x
    x = 575,878,682.84/25,905.80
  6. Step 6: Final answer
    x = 22,229.72

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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.