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Finding the Fourth Proportional to 18,570.99, 25,631.51 and 14,529.77

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Solution

The fourth proportional to 18,570.99, 25,631.51 and 14,529.77 is: 20,053.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.99 : 25,631.51 = 14,529.77 : x
  2. Step 2: Convert to fraction form
    18,570.99/25,631.51 = 14,529.77/x
  3. Step 3: Cross multiply
    18,570.99x = 25,631.51 × 14,529.77
  4. Step 4: Simplify right side
    18,570.99x = 372,419,945.05
  5. Step 5: Solve for x
    x = 372,419,945.05/18,570.99
  6. Step 6: Final answer
    x = 20,053.86

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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.