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Finding the Fourth Proportional to 16,920.63, 25,426.91 and 9,028.64

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Solution

The fourth proportional to 16,920.63, 25,426.91 and 9,028.64 is: 13,567.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.63 : 25,426.91 = 9,028.64 : x
  2. Step 2: Convert to fraction form
    16,920.63/25,426.91 = 9,028.64/x
  3. Step 3: Cross multiply
    16,920.63x = 25,426.91 × 9,028.64
  4. Step 4: Simplify right side
    16,920.63x = 229,570,502.84
  5. Step 5: Solve for x
    x = 229,570,502.84/16,920.63
  6. Step 6: Final answer
    x = 13,567.49

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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.