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Finding the Fourth Proportional to 2,482.58, 3,426.14 and 1,538.56

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Solution

The fourth proportional to 2,482.58, 3,426.14 and 1,538.56 is: 2,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,482.58 : 3,426.14 = 1,538.56 : x
  2. Step 2: Convert to fraction form
    2,482.58/3,426.14 = 1,538.56/x
  3. Step 3: Cross multiply
    2,482.58x = 3,426.14 × 1,538.56
  4. Step 4: Simplify right side
    2,482.58x = 5,271,310.82
  5. Step 5: Solve for x
    x = 5,271,310.82/2,482.58
  6. Step 6: Final answer
    x = 2,123.32

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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.