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Finding the Fourth Proportional to 8,058.76, 11,128.20 and 5,079.58

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Solution

The fourth proportional to 8,058.76, 11,128.20 and 5,079.58 is: 7,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,058.76 : 11,128.20 = 5,079.58 : x
  2. Step 2: Convert to fraction form
    8,058.76/11,128.20 = 5,079.58/x
  3. Step 3: Cross multiply
    8,058.76x = 11,128.20 × 5,079.58
  4. Step 4: Simplify right side
    8,058.76x = 56,526,582.16
  5. Step 5: Solve for x
    x = 56,526,582.16/8,058.76
  6. Step 6: Final answer
    x = 7,014.30

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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.