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Finding the Fourth Proportional to 7,041.18, 9,708 and 4,518.84

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Solution

The fourth proportional to 7,041.18, 9,708 and 4,518.84 is: 6,230.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.18 : 9,708 = 4,518.84 : x
  2. Step 2: Convert to fraction form
    7,041.18/9,708 = 4,518.84/x
  3. Step 3: Cross multiply
    7,041.18x = 9,708 × 4,518.84
  4. Step 4: Simplify right side
    7,041.18x = 43,868,898.72
  5. Step 5: Solve for x
    x = 43,868,898.72/7,041.18
  6. Step 6: Final answer
    x = 6,230.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.