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Finding the Fourth Proportional to 14,922.98, 20,594.20 and 8,208.90

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Solution

The fourth proportional to 14,922.98, 20,594.20 and 8,208.90 is: 11,328.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,922.98 : 20,594.20 = 8,208.90 : x
  2. Step 2: Convert to fraction form
    14,922.98/20,594.20 = 8,208.90/x
  3. Step 3: Cross multiply
    14,922.98x = 20,594.20 × 8,208.90
  4. Step 4: Simplify right side
    14,922.98x = 169,055,728.38
  5. Step 5: Solve for x
    x = 169,055,728.38/14,922.98
  6. Step 6: Final answer
    x = 11,328.55

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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.