Home / 25,188.20-34,758.99-13,702.75

Finding the Fourth Proportional to 25,188.20, 34,758.99 and 13,702.75

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Solution

The fourth proportional to 25,188.20, 34,758.99 and 13,702.75 is: 18,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,188.20 : 34,758.99 = 13,702.75 : x
  2. Step 2: Convert to fraction form
    25,188.20/34,758.99 = 13,702.75/x
  3. Step 3: Cross multiply
    25,188.20x = 34,758.99 × 13,702.75
  4. Step 4: Simplify right side
    25,188.20x = 476,293,576.43
  5. Step 5: Solve for x
    x = 476,293,576.43/25,188.20
  6. Step 6: Final answer
    x = 18,909.40

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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.