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Finding the Fourth Proportional to 14,363.63, 19,821.84 and 8,398.58

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Solution

The fourth proportional to 14,363.63, 19,821.84 and 8,398.58 is: 11,590.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.63 : 19,821.84 = 8,398.58 : x
  2. Step 2: Convert to fraction form
    14,363.63/19,821.84 = 8,398.58/x
  3. Step 3: Cross multiply
    14,363.63x = 19,821.84 × 8,398.58
  4. Step 4: Simplify right side
    14,363.63x = 166,475,358.54
  5. Step 5: Solve for x
    x = 166,475,358.54/14,363.63
  6. Step 6: Final answer
    x = 11,590.07

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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.