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Finding the Fourth Proportional to 10,435.56, 14,405.58 and 6,243

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Solution

The fourth proportional to 10,435.56, 14,405.58 and 6,243 is: 8,618.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.56 : 14,405.58 = 6,243 : x
  2. Step 2: Convert to fraction form
    10,435.56/14,405.58 = 6,243/x
  3. Step 3: Cross multiply
    10,435.56x = 14,405.58 × 6,243
  4. Step 4: Simplify right side
    10,435.56x = 89,934,035.94
  5. Step 5: Solve for x
    x = 89,934,035.94/10,435.56
  6. Step 6: Final answer
    x = 8,618.04

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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.