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Finding the Fourth Proportional to 14,763.30, 22,112.55 and 12,819.30

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Solution

The fourth proportional to 14,763.30, 22,112.55 and 12,819.30 is: 19,200.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,763.30 : 22,112.55 = 12,819.30 : x
  2. Step 2: Convert to fraction form
    14,763.30/22,112.55 = 12,819.30/x
  3. Step 3: Cross multiply
    14,763.30x = 22,112.55 × 12,819.30
  4. Step 4: Simplify right side
    14,763.30x = 283,467,412.22
  5. Step 5: Solve for x
    x = 283,467,412.22/14,763.30
  6. Step 6: Final answer
    x = 19,200.82

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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.