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Finding the Fourth Proportional to 14,625.42, 20,182.98 and 7,910.98

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Solution

The fourth proportional to 14,625.42, 20,182.98 and 7,910.98 is: 10,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,625.42 : 20,182.98 = 7,910.98 : x
  2. Step 2: Convert to fraction form
    14,625.42/20,182.98 = 7,910.98/x
  3. Step 3: Cross multiply
    14,625.42x = 20,182.98 × 7,910.98
  4. Step 4: Simplify right side
    14,625.42x = 159,667,151.12
  5. Step 5: Solve for x
    x = 159,667,151.12/14,625.42
  6. Step 6: Final answer
    x = 10,917.10

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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.