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Finding the Fourth Proportional to 7,486.51, 10,329.49 and 5,493.61

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Solution

The fourth proportional to 7,486.51, 10,329.49 and 5,493.61 is: 7,579.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.51 : 10,329.49 = 5,493.61 : x
  2. Step 2: Convert to fraction form
    7,486.51/10,329.49 = 5,493.61/x
  3. Step 3: Cross multiply
    7,486.51x = 10,329.49 × 5,493.61
  4. Step 4: Simplify right side
    7,486.51x = 56,746,189.56
  5. Step 5: Solve for x
    x = 56,746,189.56/7,486.51
  6. Step 6: Final answer
    x = 7,579.79

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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.