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Finding the Fourth Proportional to 34,143.64, 51,205.44 and 11,952.88

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Solution

The fourth proportional to 34,143.64, 51,205.44 and 11,952.88 is: 17,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,143.64 : 51,205.44 = 11,952.88 : x
  2. Step 2: Convert to fraction form
    34,143.64/51,205.44 = 11,952.88/x
  3. Step 3: Cross multiply
    34,143.64x = 51,205.44 × 11,952.88
  4. Step 4: Simplify right side
    34,143.64x = 612,052,479.67
  5. Step 5: Solve for x
    x = 612,052,479.67/34,143.64
  6. Step 6: Final answer
    x = 17,925.81

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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.