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Finding the Fourth Proportional to 3,349.95, 4,620.96 and 2,171.00

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Solution

The fourth proportional to 3,349.95, 4,620.96 and 2,171.00 is: 2,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,349.95 : 4,620.96 = 2,171.00 : x
  2. Step 2: Convert to fraction form
    3,349.95/4,620.96 = 2,171.00/x
  3. Step 3: Cross multiply
    3,349.95x = 4,620.96 × 2,171.00
  4. Step 4: Simplify right side
    3,349.95x = 10,032,081.06
  5. Step 5: Solve for x
    x = 10,032,081.06/3,349.95
  6. Step 6: Final answer
    x = 2,994.70

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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.