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Finding the Fourth Proportional to 2,359.95, 3,539.93 and 716.51

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Solution

The fourth proportional to 2,359.95, 3,539.93 and 716.51 is: 1,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.95 : 3,539.93 = 716.51 : x
  2. Step 2: Convert to fraction form
    2,359.95/3,539.93 = 716.51/x
  3. Step 3: Cross multiply
    2,359.95x = 3,539.93 × 716.51
  4. Step 4: Simplify right side
    2,359.95x = 2,536,373.96
  5. Step 5: Solve for x
    x = 2,536,373.96/2,359.95
  6. Step 6: Final answer
    x = 1,074.76

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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.