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Finding the Fourth Proportional to 5,603.84, 8,406.94 and 1,708.55

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Solution

The fourth proportional to 5,603.84, 8,406.94 and 1,708.55 is: 2,563.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,603.84 : 8,406.94 = 1,708.55 : x
  2. Step 2: Convert to fraction form
    5,603.84/8,406.94 = 1,708.55/x
  3. Step 3: Cross multiply
    5,603.84x = 8,406.94 × 1,708.55
  4. Step 4: Simplify right side
    5,603.84x = 14,363,677.34
  5. Step 5: Solve for x
    x = 14,363,677.34/5,603.84
  6. Step 6: Final answer
    x = 2,563.18

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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.