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Finding the Fourth Proportional to 18,281.13, 27,425.79 and 5,801.56

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Solution

The fourth proportional to 18,281.13, 27,425.79 and 5,801.56 is: 8,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.13 : 27,425.79 = 5,801.56 : x
  2. Step 2: Convert to fraction form
    18,281.13/27,425.79 = 5,801.56/x
  3. Step 3: Cross multiply
    18,281.13x = 27,425.79 × 5,801.56
  4. Step 4: Simplify right side
    18,281.13x = 159,112,346.45
  5. Step 5: Solve for x
    x = 159,112,346.45/18,281.13
  6. Step 6: Final answer
    x = 8,703.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.