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Finding the Fourth Proportional to 4,296.96, 5,929.60 and 2,640.64

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Solution

The fourth proportional to 4,296.96, 5,929.60 and 2,640.64 is: 3,643.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,296.96 : 5,929.60 = 2,640.64 : x
  2. Step 2: Convert to fraction form
    4,296.96/5,929.60 = 2,640.64/x
  3. Step 3: Cross multiply
    4,296.96x = 5,929.60 × 2,640.64
  4. Step 4: Simplify right side
    4,296.96x = 15,657,938.94
  5. Step 5: Solve for x
    x = 15,657,938.94/4,296.96
  6. Step 6: Final answer
    x = 3,643.96

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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.