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Finding the Fourth Proportional to 8,089.66, 12,067.48 and 7,156.54

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Solution

The fourth proportional to 8,089.66, 12,067.48 and 7,156.54 is: 10,675.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,089.66 : 12,067.48 = 7,156.54 : x
  2. Step 2: Convert to fraction form
    8,089.66/12,067.48 = 7,156.54/x
  3. Step 3: Cross multiply
    8,089.66x = 12,067.48 × 7,156.54
  4. Step 4: Simplify right side
    8,089.66x = 86,361,403.32
  5. Step 5: Solve for x
    x = 86,361,403.32/8,089.66
  6. Step 6: Final answer
    x = 10,675.53

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Half scale
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Double scale
Find fourth proportional to 8,090.66, 12,068.97 and 7,157.54
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.