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Finding the Fourth Proportional to 16,988.56, 23,446.98 and 9,914.96

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Solution

The fourth proportional to 16,988.56, 23,446.98 and 9,914.96 is: 13,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,988.56 : 23,446.98 = 9,914.96 : x
  2. Step 2: Convert to fraction form
    16,988.56/23,446.98 = 9,914.96/x
  3. Step 3: Cross multiply
    16,988.56x = 23,446.98 × 9,914.96
  4. Step 4: Simplify right side
    16,988.56x = 232,475,868.82
  5. Step 5: Solve for x
    x = 232,475,868.82/16,988.56
  6. Step 6: Final answer
    x = 13,684.26

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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.