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Finding the Fourth Proportional to 7,187.83, 9,919.52 and 4,044.01

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Solution

The fourth proportional to 7,187.83, 9,919.52 and 4,044.01 is: 5,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.83 : 9,919.52 = 4,044.01 : x
  2. Step 2: Convert to fraction form
    7,187.83/9,919.52 = 4,044.01/x
  3. Step 3: Cross multiply
    7,187.83x = 9,919.52 × 4,044.01
  4. Step 4: Simplify right side
    7,187.83x = 40,114,638.08
  5. Step 5: Solve for x
    x = 40,114,638.08/7,187.83
  6. Step 6: Final answer
    x = 5,580.91

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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.