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Finding the Fourth Proportional to 19,629.19, 29,443.74 and 7,950.61

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Solution

The fourth proportional to 19,629.19, 29,443.74 and 7,950.61 is: 11,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.19 : 29,443.74 = 7,950.61 : x
  2. Step 2: Convert to fraction form
    19,629.19/29,443.74 = 7,950.61/x
  3. Step 3: Cross multiply
    19,629.19x = 29,443.74 × 7,950.61
  4. Step 4: Simplify right side
    19,629.19x = 234,095,693.68
  5. Step 5: Solve for x
    x = 234,095,693.68/19,629.19
  6. Step 6: Final answer
    x = 11,925.90

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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.