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Finding the Fourth Proportional to 18,011.70, 26,962.18 and 15,354.49

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Solution

The fourth proportional to 18,011.70, 26,962.18 and 15,354.49 is: 22,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,011.70 : 26,962.18 = 15,354.49 : x
  2. Step 2: Convert to fraction form
    18,011.70/26,962.18 = 15,354.49/x
  3. Step 3: Cross multiply
    18,011.70x = 26,962.18 × 15,354.49
  4. Step 4: Simplify right side
    18,011.70x = 413,990,630.15
  5. Step 5: Solve for x
    x = 413,990,630.15/18,011.70
  6. Step 6: Final answer
    x = 22,984.54

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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.