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Finding the Fourth Proportional to 25,908.80, 38,863.20 and 17,614.40

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Solution

The fourth proportional to 25,908.80, 38,863.20 and 17,614.40 is: 26,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,908.80 : 38,863.20 = 17,614.40 : x
  2. Step 2: Convert to fraction form
    25,908.80/38,863.20 = 17,614.40/x
  3. Step 3: Cross multiply
    25,908.80x = 38,863.20 × 17,614.40
  4. Step 4: Simplify right side
    25,908.80x = 684,551,950.08
  5. Step 5: Solve for x
    x = 684,551,950.08/25,908.80
  6. Step 6: Final answer
    x = 26,421.60

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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.