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Finding the Fourth Proportional to 16,264.69, 22,445.28 and 8,812.69

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Solution

The fourth proportional to 16,264.69, 22,445.28 and 8,812.69 is: 12,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,264.69 : 22,445.28 = 8,812.69 : x
  2. Step 2: Convert to fraction form
    16,264.69/22,445.28 = 8,812.69/x
  3. Step 3: Cross multiply
    16,264.69x = 22,445.28 × 8,812.69
  4. Step 4: Simplify right side
    16,264.69x = 197,803,238.49
  5. Step 5: Solve for x
    x = 197,803,238.49/16,264.69
  6. Step 6: Final answer
    x = 12,161.51

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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.