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Finding the Fourth Proportional to 14,830.98, 20,449.98 and 12,133.68

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Solution

The fourth proportional to 14,830.98, 20,449.98 and 12,133.68 is: 16,730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,830.98 : 20,449.98 = 12,133.68 : x
  2. Step 2: Convert to fraction form
    14,830.98/20,449.98 = 12,133.68/x
  3. Step 3: Cross multiply
    14,830.98x = 20,449.98 × 12,133.68
  4. Step 4: Simplify right side
    14,830.98x = 248,133,513.33
  5. Step 5: Solve for x
    x = 248,133,513.33/14,830.98
  6. Step 6: Final answer
    x = 16,730.76

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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.