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Finding the Fourth Proportional to 28,782.40, 43,093.88 and 14,712.12

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Solution

The fourth proportional to 28,782.40, 43,093.88 and 14,712.12 is: 22,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.40 : 43,093.88 = 14,712.12 : x
  2. Step 2: Convert to fraction form
    28,782.40/43,093.88 = 14,712.12/x
  3. Step 3: Cross multiply
    28,782.40x = 43,093.88 × 14,712.12
  4. Step 4: Simplify right side
    28,782.40x = 634,002,478.01
  5. Step 5: Solve for x
    x = 634,002,478.01/28,782.40
  6. Step 6: Final answer
    x = 22,027.44

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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.