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Finding the Fourth Proportional to 19,661.94, 29,449.98 and 15,946.88

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Solution

The fourth proportional to 19,661.94, 29,449.98 and 15,946.88 is: 23,885.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.94 : 29,449.98 = 15,946.88 : x
  2. Step 2: Convert to fraction form
    19,661.94/29,449.98 = 15,946.88/x
  3. Step 3: Cross multiply
    19,661.94x = 29,449.98 × 15,946.88
  4. Step 4: Simplify right side
    19,661.94x = 469,635,149.81
  5. Step 5: Solve for x
    x = 469,635,149.81/19,661.94
  6. Step 6: Final answer
    x = 23,885.49

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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.