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Finding the Fourth Proportional to 28,792.25, 43,192.02 and 11,259.80

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Solution

The fourth proportional to 28,792.25, 43,192.02 and 11,259.80 is: 16,891.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,792.25 : 43,192.02 = 11,259.80 : x
  2. Step 2: Convert to fraction form
    28,792.25/43,192.02 = 11,259.80/x
  3. Step 3: Cross multiply
    28,792.25x = 43,192.02 × 11,259.80
  4. Step 4: Simplify right side
    28,792.25x = 486,333,506.80
  5. Step 5: Solve for x
    x = 486,333,506.80/28,792.25
  6. Step 6: Final answer
    x = 16,891.13

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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.