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Finding the Fourth Proportional to 34,392.81, 51,603.81 and 18,792.21

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Solution

The fourth proportional to 34,392.81, 51,603.81 and 18,792.21 is: 28,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,392.81 : 51,603.81 = 18,792.21 : x
  2. Step 2: Convert to fraction form
    34,392.81/51,603.81 = 18,792.21/x
  3. Step 3: Cross multiply
    34,392.81x = 51,603.81 × 18,792.21
  4. Step 4: Simplify right side
    34,392.81x = 969,749,634.32
  5. Step 5: Solve for x
    x = 969,749,634.32/34,392.81
  6. Step 6: Final answer
    x = 28,196.29

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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.