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Finding the Fourth Proportional to 25,057.25, 34,579.08 and 13,879.25

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Solution

The fourth proportional to 25,057.25, 34,579.08 and 13,879.25 is: 19,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,057.25 : 34,579.08 = 13,879.25 : x
  2. Step 2: Convert to fraction form
    25,057.25/34,579.08 = 13,879.25/x
  3. Step 3: Cross multiply
    25,057.25x = 34,579.08 × 13,879.25
  4. Step 4: Simplify right side
    25,057.25x = 479,931,626.69
  5. Step 5: Solve for x
    x = 479,931,626.69/25,057.25
  6. Step 6: Final answer
    x = 19,153.40

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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.