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Finding the Fourth Proportional to 1,713.76, 2,572.99 and 881.51

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Solution

The fourth proportional to 1,713.76, 2,572.99 and 881.51 is: 1,323.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.76 : 2,572.99 = 881.51 : x
  2. Step 2: Convert to fraction form
    1,713.76/2,572.99 = 881.51/x
  3. Step 3: Cross multiply
    1,713.76x = 2,572.99 × 881.51
  4. Step 4: Simplify right side
    1,713.76x = 2,268,106.73
  5. Step 5: Solve for x
    x = 2,268,106.73/1,713.76
  6. Step 6: Final answer
    x = 1,323.47

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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.