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Finding the Fourth Proportional to 15,661.14, 23,497.47 and 7,343.85

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Solution

The fourth proportional to 15,661.14, 23,497.47 and 7,343.85 is: 11,018.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661.14 : 23,497.47 = 7,343.85 : x
  2. Step 2: Convert to fraction form
    15,661.14/23,497.47 = 7,343.85/x
  3. Step 3: Cross multiply
    15,661.14x = 23,497.47 × 7,343.85
  4. Step 4: Simplify right side
    15,661.14x = 172,561,895.06
  5. Step 5: Solve for x
    x = 172,561,895.06/15,661.14
  6. Step 6: Final answer
    x = 11,018.48

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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.