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Finding the Fourth Proportional to 5,539.58, 7,643.94 and 4,703.66

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Solution

The fourth proportional to 5,539.58, 7,643.94 and 4,703.66 is: 6,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,539.58 : 7,643.94 = 4,703.66 : x
  2. Step 2: Convert to fraction form
    5,539.58/7,643.94 = 4,703.66/x
  3. Step 3: Cross multiply
    5,539.58x = 7,643.94 × 4,703.66
  4. Step 4: Simplify right side
    5,539.58x = 35,954,494.82
  5. Step 5: Solve for x
    x = 35,954,494.82/5,539.58
  6. Step 6: Final answer
    x = 6,490.47

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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.