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Finding the Fourth Proportional to 2,555.81, 3,833.96 and 706.93

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Solution

The fourth proportional to 2,555.81, 3,833.96 and 706.93 is: 1,060.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.81 : 3,833.96 = 706.93 : x
  2. Step 2: Convert to fraction form
    2,555.81/3,833.96 = 706.93/x
  3. Step 3: Cross multiply
    2,555.81x = 3,833.96 × 706.93
  4. Step 4: Simplify right side
    2,555.81x = 2,710,341.34
  5. Step 5: Solve for x
    x = 2,710,341.34/2,555.81
  6. Step 6: Final answer
    x = 1,060.46

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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.