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Finding the Fourth Proportional to 12,260.50, 16,920.93 and 7,292.50

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Solution

The fourth proportional to 12,260.50, 16,920.93 and 7,292.50 is: 10,064.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.50 : 16,920.93 = 7,292.50 : x
  2. Step 2: Convert to fraction form
    12,260.50/16,920.93 = 7,292.50/x
  3. Step 3: Cross multiply
    12,260.50x = 16,920.93 × 7,292.50
  4. Step 4: Simplify right side
    12,260.50x = 123,395,882.03
  5. Step 5: Solve for x
    x = 123,395,882.03/12,260.50
  6. Step 6: Final answer
    x = 10,064.51

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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.