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Finding the Fourth Proportional to 14,899.88, 20,560.42 and 8,930.44

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Solution

The fourth proportional to 14,899.88, 20,560.42 and 8,930.44 is: 12,323.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,899.88 : 20,560.42 = 8,930.44 : x
  2. Step 2: Convert to fraction form
    14,899.88/20,560.42 = 8,930.44/x
  3. Step 3: Cross multiply
    14,899.88x = 20,560.42 × 8,930.44
  4. Step 4: Simplify right side
    14,899.88x = 183,613,597.18
  5. Step 5: Solve for x
    x = 183,613,597.18/14,899.88
  6. Step 6: Final answer
    x = 12,323.16

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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.