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Finding the Fourth Proportional to 1,753.63, 2,420.01 and 967.70

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Solution

The fourth proportional to 1,753.63, 2,420.01 and 967.70 is: 1,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.63 : 2,420.01 = 967.70 : x
  2. Step 2: Convert to fraction form
    1,753.63/2,420.01 = 967.70/x
  3. Step 3: Cross multiply
    1,753.63x = 2,420.01 × 967.70
  4. Step 4: Simplify right side
    1,753.63x = 2,341,843.68
  5. Step 5: Solve for x
    x = 2,341,843.68/1,753.63
  6. Step 6: Final answer
    x = 1,335.43

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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.