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Finding the Fourth Proportional to 9,345.78, 14,026.87 and 7,885.96

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Solution

The fourth proportional to 9,345.78, 14,026.87 and 7,885.96 is: 11,835.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.78 : 14,026.87 = 7,885.96 : x
  2. Step 2: Convert to fraction form
    9,345.78/14,026.87 = 7,885.96/x
  3. Step 3: Cross multiply
    9,345.78x = 14,026.87 × 7,885.96
  4. Step 4: Simplify right side
    9,345.78x = 110,615,310.54
  5. Step 5: Solve for x
    x = 110,615,310.54/9,345.78
  6. Step 6: Final answer
    x = 11,835.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.