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Finding the Fourth Proportional to 15,661.71, 23,493.93 and 3,974.93

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Solution

The fourth proportional to 15,661.71, 23,493.93 and 3,974.93 is: 5,962.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661.71 : 23,493.93 = 3,974.93 : x
  2. Step 2: Convert to fraction form
    15,661.71/23,493.93 = 3,974.93/x
  3. Step 3: Cross multiply
    15,661.71x = 23,493.93 × 3,974.93
  4. Step 4: Simplify right side
    15,661.71x = 93,386,609.71
  5. Step 5: Solve for x
    x = 93,386,609.71/15,661.71
  6. Step 6: Final answer
    x = 5,962.73

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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.