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Finding the Fourth Proportional to 28,846.32, 39,808.44 and 16,918.26

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Solution

The fourth proportional to 28,846.32, 39,808.44 and 16,918.26 is: 23,347.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,846.32 : 39,808.44 = 16,918.26 : x
  2. Step 2: Convert to fraction form
    28,846.32/39,808.44 = 16,918.26/x
  3. Step 3: Cross multiply
    28,846.32x = 39,808.44 × 16,918.26
  4. Step 4: Simplify right side
    28,846.32x = 673,489,538.11
  5. Step 5: Solve for x
    x = 673,489,538.11/28,846.32
  6. Step 6: Final answer
    x = 23,347.50

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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.