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Finding the Fourth Proportional to 14,756.50, 20,364.17 and 8,468.88

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Solution

The fourth proportional to 14,756.50, 20,364.17 and 8,468.88 is: 11,687.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,756.50 : 20,364.17 = 8,468.88 : x
  2. Step 2: Convert to fraction form
    14,756.50/20,364.17 = 8,468.88/x
  3. Step 3: Cross multiply
    14,756.50x = 20,364.17 × 8,468.88
  4. Step 4: Simplify right side
    14,756.50x = 172,461,712.03
  5. Step 5: Solve for x
    x = 172,461,712.03/14,756.50
  6. Step 6: Final answer
    x = 11,687.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.