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Finding the Fourth Proportional to 14,465.01, 19,961.78 and 8,418.83

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Solution

The fourth proportional to 14,465.01, 19,961.78 and 8,418.83 is: 11,618.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,465.01 : 19,961.78 = 8,418.83 : x
  2. Step 2: Convert to fraction form
    14,465.01/19,961.78 = 8,418.83/x
  3. Step 3: Cross multiply
    14,465.01x = 19,961.78 × 8,418.83
  4. Step 4: Simplify right side
    14,465.01x = 168,054,832.32
  5. Step 5: Solve for x
    x = 168,054,832.32/14,465.01
  6. Step 6: Final answer
    x = 11,618.02

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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.