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Finding the Fourth Proportional to 15,479.76, 23,223.72 and 8,894.16

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Solution

The fourth proportional to 15,479.76, 23,223.72 and 8,894.16 is: 13,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.76 : 23,223.72 = 8,894.16 : x
  2. Step 2: Convert to fraction form
    15,479.76/23,223.72 = 8,894.16/x
  3. Step 3: Cross multiply
    15,479.76x = 23,223.72 × 8,894.16
  4. Step 4: Simplify right side
    15,479.76x = 206,555,481.48
  5. Step 5: Solve for x
    x = 206,555,481.48/15,479.76
  6. Step 6: Final answer
    x = 13,343.58

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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.