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Finding the Fourth Proportional to 26,884.98, 40,320.99 and 8,416.98

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Solution

The fourth proportional to 26,884.98, 40,320.99 and 8,416.98 is: 12,623.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,884.98 : 40,320.99 = 8,416.98 : x
  2. Step 2: Convert to fraction form
    26,884.98/40,320.99 = 8,416.98/x
  3. Step 3: Cross multiply
    26,884.98x = 40,320.99 × 8,416.98
  4. Step 4: Simplify right side
    26,884.98x = 339,380,966.41
  5. Step 5: Solve for x
    x = 339,380,966.41/26,884.98
  6. Step 6: Final answer
    x = 12,623.44

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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.