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Finding the Fourth Proportional to 9,843.83, 13,555.45 and 8,795.51

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Solution

The fourth proportional to 9,843.83, 13,555.45 and 8,795.51 is: 12,111.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,843.83 : 13,555.45 = 8,795.51 : x
  2. Step 2: Convert to fraction form
    9,843.83/13,555.45 = 8,795.51/x
  3. Step 3: Cross multiply
    9,843.83x = 13,555.45 × 8,795.51
  4. Step 4: Simplify right side
    9,843.83x = 119,227,096.03
  5. Step 5: Solve for x
    x = 119,227,096.03/9,843.83
  6. Step 6: Final answer
    x = 12,111.86

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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.