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Finding the Fourth Proportional to 12,592.76, 18,882.86 and 7,329.51

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Solution

The fourth proportional to 12,592.76, 18,882.86 and 7,329.51 is: 10,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,592.76 : 18,882.86 = 7,329.51 : x
  2. Step 2: Convert to fraction form
    12,592.76/18,882.86 = 7,329.51/x
  3. Step 3: Cross multiply
    12,592.76x = 18,882.86 × 7,329.51
  4. Step 4: Simplify right side
    12,592.76x = 138,402,074.55
  5. Step 5: Solve for x
    x = 138,402,074.55/12,592.76
  6. Step 6: Final answer
    x = 10,990.61

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1.5x scale

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.