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Finding the Fourth Proportional to 6,079.76, 8,390.10 and 3,427.22

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Solution

The fourth proportional to 6,079.76, 8,390.10 and 3,427.22 is: 4,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,079.76 : 8,390.10 = 3,427.22 : x
  2. Step 2: Convert to fraction form
    6,079.76/8,390.10 = 3,427.22/x
  3. Step 3: Cross multiply
    6,079.76x = 8,390.10 × 3,427.22
  4. Step 4: Simplify right side
    6,079.76x = 28,754,718.52
  5. Step 5: Solve for x
    x = 28,754,718.52/6,079.76
  6. Step 6: Final answer
    x = 4,729.58

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Half scale
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Double scale
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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.