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Finding the Fourth Proportional to 28,920.84, 43,387.50 and 16,446.84

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Solution

The fourth proportional to 28,920.84, 43,387.50 and 16,446.84 is: 24,673.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920.84 : 43,387.50 = 16,446.84 : x
  2. Step 2: Convert to fraction form
    28,920.84/43,387.50 = 16,446.84/x
  3. Step 3: Cross multiply
    28,920.84x = 43,387.50 × 16,446.84
  4. Step 4: Simplify right side
    28,920.84x = 713,587,270.50
  5. Step 5: Solve for x
    x = 713,587,270.50/28,920.84
  6. Step 6: Final answer
    x = 24,673.81

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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.