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Finding the Fourth Proportional to 25,710.80, 38,537.40 and 14,622.80

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Solution

The fourth proportional to 25,710.80, 38,537.40 and 14,622.80 is: 21,917.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,710.80 : 38,537.40 = 14,622.80 : x
  2. Step 2: Convert to fraction form
    25,710.80/38,537.40 = 14,622.80/x
  3. Step 3: Cross multiply
    25,710.80x = 38,537.40 × 14,622.80
  4. Step 4: Simplify right side
    25,710.80x = 563,524,692.72
  5. Step 5: Solve for x
    x = 563,524,692.72/25,710.80
  6. Step 6: Final answer
    x = 21,917.82

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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.