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Finding the Fourth Proportional to 7,875.73, 11,805.49 and 3,495.25

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Solution

The fourth proportional to 7,875.73, 11,805.49 and 3,495.25 is: 5,239.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.73 : 11,805.49 = 3,495.25 : x
  2. Step 2: Convert to fraction form
    7,875.73/11,805.49 = 3,495.25/x
  3. Step 3: Cross multiply
    7,875.73x = 11,805.49 × 3,495.25
  4. Step 4: Simplify right side
    7,875.73x = 41,263,138.92
  5. Step 5: Solve for x
    x = 41,263,138.92/7,875.73
  6. Step 6: Final answer
    x = 5,239.28

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1.5x scale

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.