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Finding the Fourth Proportional to 8,715.53, 13,048.45 and 5,788.01

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Solution

The fourth proportional to 8,715.53, 13,048.45 and 5,788.01 is: 8,665.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.53 : 13,048.45 = 5,788.01 : x
  2. Step 2: Convert to fraction form
    8,715.53/13,048.45 = 5,788.01/x
  3. Step 3: Cross multiply
    8,715.53x = 13,048.45 × 5,788.01
  4. Step 4: Simplify right side
    8,715.53x = 75,524,559.08
  5. Step 5: Solve for x
    x = 75,524,559.08/8,715.53
  6. Step 6: Final answer
    x = 8,665.52

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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.