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Finding the Fourth Proportional to 2,095.58, 3,141.21 and 708.46

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Solution

The fourth proportional to 2,095.58, 3,141.21 and 708.46 is: 1,061.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.58 : 3,141.21 = 708.46 : x
  2. Step 2: Convert to fraction form
    2,095.58/3,141.21 = 708.46/x
  3. Step 3: Cross multiply
    2,095.58x = 3,141.21 × 708.46
  4. Step 4: Simplify right side
    2,095.58x = 2,225,421.64
  5. Step 5: Solve for x
    x = 2,225,421.64/2,095.58
  6. Step 6: Final answer
    x = 1,061.96

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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.