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Finding the Fourth Proportional to 1,544.90, 2,132.00 and 881.64

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Solution

The fourth proportional to 1,544.90, 2,132.00 and 881.64 is: 1,216.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.90 : 2,132.00 = 881.64 : x
  2. Step 2: Convert to fraction form
    1,544.90/2,132.00 = 881.64/x
  3. Step 3: Cross multiply
    1,544.90x = 2,132.00 × 881.64
  4. Step 4: Simplify right side
    1,544.90x = 1,879,652.07
  5. Step 5: Solve for x
    x = 1,879,652.07/1,544.90
  6. Step 6: Final answer
    x = 1,216.69

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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.