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Finding the Fourth Proportional to 1,346.79, 2,018.01 and 1,059.51

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Solution

The fourth proportional to 1,346.79, 2,018.01 and 1,059.51 is: 1,587.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.79 : 2,018.01 = 1,059.51 : x
  2. Step 2: Convert to fraction form
    1,346.79/2,018.01 = 1,059.51/x
  3. Step 3: Cross multiply
    1,346.79x = 2,018.01 × 1,059.51
  4. Step 4: Simplify right side
    1,346.79x = 2,138,101.78
  5. Step 5: Solve for x
    x = 2,138,101.78/1,346.79
  6. Step 6: Final answer
    x = 1,587.55

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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.