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Finding the Fourth Proportional to 14,363.76, 19,819.05 and 8,394.26

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Solution

The fourth proportional to 14,363.76, 19,819.05 and 8,394.26 is: 11,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.76 : 19,819.05 = 8,394.26 : x
  2. Step 2: Convert to fraction form
    14,363.76/19,819.05 = 8,394.26/x
  3. Step 3: Cross multiply
    14,363.76x = 19,819.05 × 8,394.26
  4. Step 4: Simplify right side
    14,363.76x = 166,366,159.56
  5. Step 5: Solve for x
    x = 166,366,159.56/14,363.76
  6. Step 6: Final answer
    x = 11,582.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.