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Finding the Fourth Proportional to 7,039.96, 9,713.51 and 4,208.25

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Solution

The fourth proportional to 7,039.96, 9,713.51 and 4,208.25 is: 5,806.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.96 : 9,713.51 = 4,208.25 : x
  2. Step 2: Convert to fraction form
    7,039.96/9,713.51 = 4,208.25/x
  3. Step 3: Cross multiply
    7,039.96x = 9,713.51 × 4,208.25
  4. Step 4: Simplify right side
    7,039.96x = 40,876,878.46
  5. Step 5: Solve for x
    x = 40,876,878.46/7,039.96
  6. Step 6: Final answer
    x = 5,806.41

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1.5x scale

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.