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Finding the Fourth Proportional to 18,492.93, 27,735.21 and 5,342.40

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Solution

The fourth proportional to 18,492.93, 27,735.21 and 5,342.40 is: 8,012.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.93 : 27,735.21 = 5,342.40 : x
  2. Step 2: Convert to fraction form
    18,492.93/27,735.21 = 5,342.40/x
  3. Step 3: Cross multiply
    18,492.93x = 27,735.21 × 5,342.40
  4. Step 4: Simplify right side
    18,492.93x = 148,172,585.90
  5. Step 5: Solve for x
    x = 148,172,585.90/18,492.93
  6. Step 6: Final answer
    x = 8,012.39

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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.