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Finding the Fourth Proportional to 10,715.40, 16,073.10 and 4,559.40

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Solution

The fourth proportional to 10,715.40, 16,073.10 and 4,559.40 is: 6,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.40 : 16,073.10 = 4,559.40 : x
  2. Step 2: Convert to fraction form
    10,715.40/16,073.10 = 4,559.40/x
  3. Step 3: Cross multiply
    10,715.40x = 16,073.10 × 4,559.40
  4. Step 4: Simplify right side
    10,715.40x = 73,283,692.14
  5. Step 5: Solve for x
    x = 73,283,692.14/10,715.40
  6. Step 6: Final answer
    x = 6,839.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.