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Finding the Fourth Proportional to 8,348.62, 11,521.12 and 4,520.30

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Solution

The fourth proportional to 8,348.62, 11,521.12 and 4,520.30 is: 6,238.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.62 : 11,521.12 = 4,520.30 : x
  2. Step 2: Convert to fraction form
    8,348.62/11,521.12 = 4,520.30/x
  3. Step 3: Cross multiply
    8,348.62x = 11,521.12 × 4,520.30
  4. Step 4: Simplify right side
    8,348.62x = 52,078,918.74
  5. Step 5: Solve for x
    x = 52,078,918.74/8,348.62
  6. Step 6: Final answer
    x = 6,238.03

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Half scale
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Double scale
Find fourth proportional to 8,349.62, 11,522.50 and 4,521.30
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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.