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Finding the Fourth Proportional to 3,570.89, 4,928.45 and 2,245.32

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Solution

The fourth proportional to 3,570.89, 4,928.45 and 2,245.32 is: 3,098.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.89 : 4,928.45 = 2,245.32 : x
  2. Step 2: Convert to fraction form
    3,570.89/4,928.45 = 2,245.32/x
  3. Step 3: Cross multiply
    3,570.89x = 4,928.45 × 2,245.32
  4. Step 4: Simplify right side
    3,570.89x = 11,065,936.13
  5. Step 5: Solve for x
    x = 11,065,936.13/3,570.89
  6. Step 6: Final answer
    x = 3,098.93

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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.