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Finding the Fourth Proportional to 25,992.70, 38,963.45 and 12,847.10

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Solution

The fourth proportional to 25,992.70, 38,963.45 and 12,847.10 is: 19,258.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,992.70 : 38,963.45 = 12,847.10 : x
  2. Step 2: Convert to fraction form
    25,992.70/38,963.45 = 12,847.10/x
  3. Step 3: Cross multiply
    25,992.70x = 38,963.45 × 12,847.10
  4. Step 4: Simplify right side
    25,992.70x = 500,567,338.50
  5. Step 5: Solve for x
    x = 500,567,338.50/25,992.70
  6. Step 6: Final answer
    x = 19,258.00

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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.