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Finding the Fourth Proportional to 25,952.57, 38,931.58 and 11,910.20

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Solution

The fourth proportional to 25,952.57, 38,931.58 and 11,910.20 is: 17,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,952.57 : 38,931.58 = 11,910.20 : x
  2. Step 2: Convert to fraction form
    25,952.57/38,931.58 = 11,910.20/x
  3. Step 3: Cross multiply
    25,952.57x = 38,931.58 × 11,910.20
  4. Step 4: Simplify right side
    25,952.57x = 463,682,904.12
  5. Step 5: Solve for x
    x = 463,682,904.12/25,952.57
  6. Step 6: Final answer
    x = 17,866.55

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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.