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Finding the Fourth Proportional to 8,019.38, 11,068.98 and 5,501.90

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Solution

The fourth proportional to 8,019.38, 11,068.98 and 5,501.90 is: 7,594.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,019.38 : 11,068.98 = 5,501.90 : x
  2. Step 2: Convert to fraction form
    8,019.38/11,068.98 = 5,501.90/x
  3. Step 3: Cross multiply
    8,019.38x = 11,068.98 × 5,501.90
  4. Step 4: Simplify right side
    8,019.38x = 60,900,421.06
  5. Step 5: Solve for x
    x = 60,900,421.06/8,019.38
  6. Step 6: Final answer
    x = 7,594.16

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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.