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Finding the Fourth Proportional to 15,955.90, 22,018.92 and 8,882.32

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Solution

The fourth proportional to 15,955.90, 22,018.92 and 8,882.32 is: 12,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.90 : 22,018.92 = 8,882.32 : x
  2. Step 2: Convert to fraction form
    15,955.90/22,018.92 = 8,882.32/x
  3. Step 3: Cross multiply
    15,955.90x = 22,018.92 × 8,882.32
  4. Step 4: Simplify right side
    15,955.90x = 195,579,093.49
  5. Step 5: Solve for x
    x = 195,579,093.49/15,955.90
  6. Step 6: Final answer
    x = 12,257.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.