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Finding the Fourth Proportional to 30,221.67, 41,705.67 and 16,792.68

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Solution

The fourth proportional to 30,221.67, 41,705.67 and 16,792.68 is: 23,173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,221.67 : 41,705.67 = 16,792.68 : x
  2. Step 2: Convert to fraction form
    30,221.67/41,705.67 = 16,792.68/x
  3. Step 3: Cross multiply
    30,221.67x = 41,705.67 × 16,792.68
  4. Step 4: Simplify right side
    30,221.67x = 700,349,970.50
  5. Step 5: Solve for x
    x = 700,349,970.50/30,221.67
  6. Step 6: Final answer
    x = 23,173.77

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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.