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Finding the Fourth Proportional to 1,654.74, 2,482.14 and 1,345.82

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Solution

The fourth proportional to 1,654.74, 2,482.14 and 1,345.82 is: 2,018.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,654.74 : 2,482.14 = 1,345.82 : x
  2. Step 2: Convert to fraction form
    1,654.74/2,482.14 = 1,345.82/x
  3. Step 3: Cross multiply
    1,654.74x = 2,482.14 × 1,345.82
  4. Step 4: Simplify right side
    1,654.74x = 3,340,513.65
  5. Step 5: Solve for x
    x = 3,340,513.65/1,654.74
  6. Step 6: Final answer
    x = 2,018.75

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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.