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Finding the Fourth Proportional to 1,486.71, 2,051.90 and 1,132.06

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Solution

The fourth proportional to 1,486.71, 2,051.90 and 1,132.06 is: 1,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.71 : 2,051.90 = 1,132.06 : x
  2. Step 2: Convert to fraction form
    1,486.71/2,051.90 = 1,132.06/x
  3. Step 3: Cross multiply
    1,486.71x = 2,051.90 × 1,132.06
  4. Step 4: Simplify right side
    1,486.71x = 2,322,868.25
  5. Step 5: Solve for x
    x = 2,322,868.25/1,486.71
  6. Step 6: Final answer
    x = 1,562.42

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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.