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Finding the Fourth Proportional to 25,698.59, 35,471.57 and 14,945.99

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Solution

The fourth proportional to 25,698.59, 35,471.57 and 14,945.99 is: 20,629.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,698.59 : 35,471.57 = 14,945.99 : x
  2. Step 2: Convert to fraction form
    25,698.59/35,471.57 = 14,945.99/x
  3. Step 3: Cross multiply
    25,698.59x = 35,471.57 × 14,945.99
  4. Step 4: Simplify right side
    25,698.59x = 530,157,478.42
  5. Step 5: Solve for x
    x = 530,157,478.42/25,698.59
  6. Step 6: Final answer
    x = 20,629.83

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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.