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Finding the Fourth Proportional to 28,995.18, 43,492.97 and 7,934.77

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Solution

The fourth proportional to 28,995.18, 43,492.97 and 7,934.77 is: 11,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,995.18 : 43,492.97 = 7,934.77 : x
  2. Step 2: Convert to fraction form
    28,995.18/43,492.97 = 7,934.77/x
  3. Step 3: Cross multiply
    28,995.18x = 43,492.97 × 7,934.77
  4. Step 4: Simplify right side
    28,995.18x = 345,106,713.57
  5. Step 5: Solve for x
    x = 345,106,713.57/28,995.18
  6. Step 6: Final answer
    x = 11,902.21

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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.