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Finding the Fourth Proportional to 18,777.98, 25,886.01 and 14,293.92

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Solution

The fourth proportional to 18,777.98, 25,886.01 and 14,293.92 is: 19,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.98 : 25,886.01 = 14,293.92 : x
  2. Step 2: Convert to fraction form
    18,777.98/25,886.01 = 14,293.92/x
  3. Step 3: Cross multiply
    18,777.98x = 25,886.01 × 14,293.92
  4. Step 4: Simplify right side
    18,777.98x = 370,012,484.59
  5. Step 5: Solve for x
    x = 370,012,484.59/18,777.98
  6. Step 6: Final answer
    x = 19,704.59

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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.