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Finding the Fourth Proportional to 2,165.63, 3,248.64 and 704.39

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Solution

The fourth proportional to 2,165.63, 3,248.64 and 704.39 is: 1,056.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.63 : 3,248.64 = 704.39 : x
  2. Step 2: Convert to fraction form
    2,165.63/3,248.64 = 704.39/x
  3. Step 3: Cross multiply
    2,165.63x = 3,248.64 × 704.39
  4. Step 4: Simplify right side
    2,165.63x = 2,288,293.29
  5. Step 5: Solve for x
    x = 2,288,293.29/2,165.63
  6. Step 6: Final answer
    x = 1,056.64

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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.