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Finding the Fourth Proportional to 14,772.92, 20,385.86 and 8,058.48

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Solution

The fourth proportional to 14,772.92, 20,385.86 and 8,058.48 is: 11,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.92 : 20,385.86 = 8,058.48 : x
  2. Step 2: Convert to fraction form
    14,772.92/20,385.86 = 8,058.48/x
  3. Step 3: Cross multiply
    14,772.92x = 20,385.86 × 8,058.48
  4. Step 4: Simplify right side
    14,772.92x = 164,279,045.09
  5. Step 5: Solve for x
    x = 164,279,045.09/14,772.92
  6. Step 6: Final answer
    x = 11,120.28

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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.