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Finding the Fourth Proportional to 7,063.08, 9,748.32 and 4,078.50

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Solution

The fourth proportional to 7,063.08, 9,748.32 and 4,078.50 is: 5,629.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.08 : 9,748.32 = 4,078.50 : x
  2. Step 2: Convert to fraction form
    7,063.08/9,748.32 = 4,078.50/x
  3. Step 3: Cross multiply
    7,063.08x = 9,748.32 × 4,078.50
  4. Step 4: Simplify right side
    7,063.08x = 39,758,523.12
  5. Step 5: Solve for x
    x = 39,758,523.12/7,063.08
  6. Step 6: Final answer
    x = 5,629.06

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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.