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Finding the Fourth Proportional to 2,359.61, 3,539.43 and 716.15

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Solution

The fourth proportional to 2,359.61, 3,539.43 and 716.15 is: 1,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.61 : 3,539.43 = 716.15 : x
  2. Step 2: Convert to fraction form
    2,359.61/3,539.43 = 716.15/x
  3. Step 3: Cross multiply
    2,359.61x = 3,539.43 × 716.15
  4. Step 4: Simplify right side
    2,359.61x = 2,534,762.79
  5. Step 5: Solve for x
    x = 2,534,762.79/2,359.61
  6. Step 6: Final answer
    x = 1,074.23

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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.