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Finding the Fourth Proportional to 1,713.84, 2,365.80 and 1,154.64

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Solution

The fourth proportional to 1,713.84, 2,365.80 and 1,154.64 is: 1,593.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.84 : 2,365.80 = 1,154.64 : x
  2. Step 2: Convert to fraction form
    1,713.84/2,365.80 = 1,154.64/x
  3. Step 3: Cross multiply
    1,713.84x = 2,365.80 × 1,154.64
  4. Step 4: Simplify right side
    1,713.84x = 2,731,647.31
  5. Step 5: Solve for x
    x = 2,731,647.31/1,713.84
  6. Step 6: Final answer
    x = 1,593.88

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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.