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Finding the Fourth Proportional to 14,953.94, 20,635.45 and 8,982.06

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Solution

The fourth proportional to 14,953.94, 20,635.45 and 8,982.06 is: 12,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,953.94 : 20,635.45 = 8,982.06 : x
  2. Step 2: Convert to fraction form
    14,953.94/20,635.45 = 8,982.06/x
  3. Step 3: Cross multiply
    14,953.94x = 20,635.45 × 8,982.06
  4. Step 4: Simplify right side
    14,953.94x = 185,348,850.03
  5. Step 5: Solve for x
    x = 185,348,850.03/14,953.94
  6. Step 6: Final answer
    x = 12,394.65

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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.