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Finding the Fourth Proportional to 7,763.52, 11,648.16 and 3,605.52

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Solution

The fourth proportional to 7,763.52, 11,648.16 and 3,605.52 is: 5,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.52 : 11,648.16 = 3,605.52 : x
  2. Step 2: Convert to fraction form
    7,763.52/11,648.16 = 3,605.52/x
  3. Step 3: Cross multiply
    7,763.52x = 11,648.16 × 3,605.52
  4. Step 4: Simplify right side
    7,763.52x = 41,997,673.84
  5. Step 5: Solve for x
    x = 41,997,673.84/7,763.52
  6. Step 6: Final answer
    x = 5,409.62

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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.