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Finding the Fourth Proportional to 10,716.21, 14,808.71 and 8,059.01

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Solution

The fourth proportional to 10,716.21, 14,808.71 and 8,059.01 is: 11,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,716.21 : 14,808.71 = 8,059.01 : x
  2. Step 2: Convert to fraction form
    10,716.21/14,808.71 = 8,059.01/x
  3. Step 3: Cross multiply
    10,716.21x = 14,808.71 × 8,059.01
  4. Step 4: Simplify right side
    10,716.21x = 119,343,427.64
  5. Step 5: Solve for x
    x = 119,343,427.64/10,716.21
  6. Step 6: Final answer
    x = 11,136.72

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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.