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Finding the Fourth Proportional to 16,458.30, 22,712.34 and 8,904.63

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Solution

The fourth proportional to 16,458.30, 22,712.34 and 8,904.63 is: 12,288.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,458.30 : 22,712.34 = 8,904.63 : x
  2. Step 2: Convert to fraction form
    16,458.30/22,712.34 = 8,904.63/x
  3. Step 3: Cross multiply
    16,458.30x = 22,712.34 × 8,904.63
  4. Step 4: Simplify right side
    16,458.30x = 202,244,984.13
  5. Step 5: Solve for x
    x = 202,244,984.13/16,458.30
  6. Step 6: Final answer
    x = 12,288.33

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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.