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Finding the Fourth Proportional to 27,199.94, 40,746.72 and 18,765.14

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Solution

The fourth proportional to 27,199.94, 40,746.72 and 18,765.14 is: 28,111.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,199.94 : 40,746.72 = 18,765.14 : x
  2. Step 2: Convert to fraction form
    27,199.94/40,746.72 = 18,765.14/x
  3. Step 3: Cross multiply
    27,199.94x = 40,746.72 × 18,765.14
  4. Step 4: Simplify right side
    27,199.94x = 764,617,905.34
  5. Step 5: Solve for x
    x = 764,617,905.34/27,199.94
  6. Step 6: Final answer
    x = 28,111.01

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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.