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Finding the Fourth Proportional to 5,659.84, 8,490.23 and 1,764.25

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Solution

The fourth proportional to 5,659.84, 8,490.23 and 1,764.25 is: 2,646.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,659.84 : 8,490.23 = 1,764.25 : x
  2. Step 2: Convert to fraction form
    5,659.84/8,490.23 = 1,764.25/x
  3. Step 3: Cross multiply
    5,659.84x = 8,490.23 × 1,764.25
  4. Step 4: Simplify right side
    5,659.84x = 14,978,888.28
  5. Step 5: Solve for x
    x = 14,978,888.28/5,659.84
  6. Step 6: Final answer
    x = 2,646.52

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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.