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Finding the Fourth Proportional to 8,326.60, 11,467.32 and 8,145.16

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Solution

The fourth proportional to 8,326.60, 11,467.32 and 8,145.16 is: 11,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.60 : 11,467.32 = 8,145.16 : x
  2. Step 2: Convert to fraction form
    8,326.60/11,467.32 = 8,145.16/x
  3. Step 3: Cross multiply
    8,326.60x = 11,467.32 × 8,145.16
  4. Step 4: Simplify right side
    8,326.60x = 93,403,156.17
  5. Step 5: Solve for x
    x = 93,403,156.17/8,326.60
  6. Step 6: Final answer
    x = 11,217.44

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Half scale
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Double scale
Find fourth proportional to 8,327.60, 11,468.70 and 8,146.16
Similar ratio
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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.