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Finding the Fourth Proportional to 2,655.47, 3,656.18 and 2,409.44

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Solution

The fourth proportional to 2,655.47, 3,656.18 and 2,409.44 is: 3,317.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.47 : 3,656.18 = 2,409.44 : x
  2. Step 2: Convert to fraction form
    2,655.47/3,656.18 = 2,409.44/x
  3. Step 3: Cross multiply
    2,655.47x = 3,656.18 × 2,409.44
  4. Step 4: Simplify right side
    2,655.47x = 8,809,334.08
  5. Step 5: Solve for x
    x = 8,809,334.08/2,655.47
  6. Step 6: Final answer
    x = 3,317.43

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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.