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Finding the Fourth Proportional to 18,354.80, 25,325.99 and 10,801.45

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Solution

The fourth proportional to 18,354.80, 25,325.99 and 10,801.45 is: 14,903.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.80 : 25,325.99 = 10,801.45 : x
  2. Step 2: Convert to fraction form
    18,354.80/25,325.99 = 10,801.45/x
  3. Step 3: Cross multiply
    18,354.80x = 25,325.99 × 10,801.45
  4. Step 4: Simplify right side
    18,354.80x = 273,557,463.22
  5. Step 5: Solve for x
    x = 273,557,463.22/18,354.80
  6. Step 6: Final answer
    x = 14,903.86

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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.