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Finding the Fourth Proportional to 7,873.91, 11,810.91 and 2,030.06

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Solution

The fourth proportional to 7,873.91, 11,810.91 and 2,030.06 is: 3,045.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.91 : 11,810.91 = 2,030.06 : x
  2. Step 2: Convert to fraction form
    7,873.91/11,810.91 = 2,030.06/x
  3. Step 3: Cross multiply
    7,873.91x = 11,810.91 × 2,030.06
  4. Step 4: Simplify right side
    7,873.91x = 23,976,893.09
  5. Step 5: Solve for x
    x = 23,976,893.09/7,873.91
  6. Step 6: Final answer
    x = 3,045.11

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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.