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Finding the Fourth Proportional to 16,488.63, 22,755.94 and 9,416.12

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Solution

The fourth proportional to 16,488.63, 22,755.94 and 9,416.12 is: 12,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,488.63 : 22,755.94 = 9,416.12 : x
  2. Step 2: Convert to fraction form
    16,488.63/22,755.94 = 9,416.12/x
  3. Step 3: Cross multiply
    16,488.63x = 22,755.94 × 9,416.12
  4. Step 4: Simplify right side
    16,488.63x = 214,272,524.43
  5. Step 5: Solve for x
    x = 214,272,524.43/16,488.63
  6. Step 6: Final answer
    x = 12,995.17

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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.