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Finding the Fourth Proportional to 16,920.90, 25,344.90 and 14,733.90

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Solution

The fourth proportional to 16,920.90, 25,344.90 and 14,733.90 is: 22,069.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.90 : 25,344.90 = 14,733.90 : x
  2. Step 2: Convert to fraction form
    16,920.90/25,344.90 = 14,733.90/x
  3. Step 3: Cross multiply
    16,920.90x = 25,344.90 × 14,733.90
  4. Step 4: Simplify right side
    16,920.90x = 373,429,222.11
  5. Step 5: Solve for x
    x = 373,429,222.11/16,920.90
  6. Step 6: Final answer
    x = 22,069.11

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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.