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Finding the Fourth Proportional to 7,159.25, 9,884.09 and 4,679.57

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Solution

The fourth proportional to 7,159.25, 9,884.09 and 4,679.57 is: 6,460.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.25 : 9,884.09 = 4,679.57 : x
  2. Step 2: Convert to fraction form
    7,159.25/9,884.09 = 4,679.57/x
  3. Step 3: Cross multiply
    7,159.25x = 9,884.09 × 4,679.57
  4. Step 4: Simplify right side
    7,159.25x = 46,253,267.64
  5. Step 5: Solve for x
    x = 46,253,267.64/7,159.25
  6. Step 6: Final answer
    x = 6,460.63

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1.5x scale

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.