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Finding the Fourth Proportional to 1,753.94, 2,420.32 and 967.98

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Solution

The fourth proportional to 1,753.94, 2,420.32 and 967.98 is: 1,335.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.94 : 2,420.32 = 967.98 : x
  2. Step 2: Convert to fraction form
    1,753.94/2,420.32 = 967.98/x
  3. Step 3: Cross multiply
    1,753.94x = 2,420.32 × 967.98
  4. Step 4: Simplify right side
    1,753.94x = 2,342,821.35
  5. Step 5: Solve for x
    x = 2,342,821.35/1,753.94
  6. Step 6: Final answer
    x = 1,335.75

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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.