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Finding the Fourth Proportional to 14,950.94, 20,630.48 and 8,577.20

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Solution

The fourth proportional to 14,950.94, 20,630.48 and 8,577.20 is: 11,835.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,950.94 : 20,630.48 = 8,577.20 : x
  2. Step 2: Convert to fraction form
    14,950.94/20,630.48 = 8,577.20/x
  3. Step 3: Cross multiply
    14,950.94x = 20,630.48 × 8,577.20
  4. Step 4: Simplify right side
    14,950.94x = 176,951,753.06
  5. Step 5: Solve for x
    x = 176,951,753.06/14,950.94
  6. Step 6: Final answer
    x = 11,835.49

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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.