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Finding the Fourth Proportional to 15,418.92, 23,118.06 and 7,927.24

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Solution

The fourth proportional to 15,418.92, 23,118.06 and 7,927.24 is: 11,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.92 : 23,118.06 = 7,927.24 : x
  2. Step 2: Convert to fraction form
    15,418.92/23,118.06 = 7,927.24/x
  3. Step 3: Cross multiply
    15,418.92x = 23,118.06 × 7,927.24
  4. Step 4: Simplify right side
    15,418.92x = 183,262,409.95
  5. Step 5: Solve for x
    x = 183,262,409.95/15,418.92
  6. Step 6: Final answer
    x = 11,885.55

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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.