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Finding the Fourth Proportional to 16,459.29, 22,714.79 and 9,387.99

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Solution

The fourth proportional to 16,459.29, 22,714.79 and 9,387.99 is: 12,955.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,459.29 : 22,714.79 = 9,387.99 : x
  2. Step 2: Convert to fraction form
    16,459.29/22,714.79 = 9,387.99/x
  3. Step 3: Cross multiply
    16,459.29x = 22,714.79 × 9,387.99
  4. Step 4: Simplify right side
    16,459.29x = 213,246,174.43
  5. Step 5: Solve for x
    x = 213,246,174.43/16,459.29
  6. Step 6: Final answer
    x = 12,955.98

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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.