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Finding the Fourth Proportional to 3,272.95, 4,909.48 and 933.02

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Solution

The fourth proportional to 3,272.95, 4,909.48 and 933.02 is: 1,399.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.95 : 4,909.48 = 933.02 : x
  2. Step 2: Convert to fraction form
    3,272.95/4,909.48 = 933.02/x
  3. Step 3: Cross multiply
    3,272.95x = 4,909.48 × 933.02
  4. Step 4: Simplify right side
    3,272.95x = 4,580,643.03
  5. Step 5: Solve for x
    x = 4,580,643.03/3,272.95
  6. Step 6: Final answer
    x = 1,399.55

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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.