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Finding the Fourth Proportional to 8,478.93, 11,699.66 and 4,844.71

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Solution

The fourth proportional to 8,478.93, 11,699.66 and 4,844.71 is: 6,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478.93 : 11,699.66 = 4,844.71 : x
  2. Step 2: Convert to fraction form
    8,478.93/11,699.66 = 4,844.71/x
  3. Step 3: Cross multiply
    8,478.93x = 11,699.66 × 4,844.71
  4. Step 4: Simplify right side
    8,478.93x = 56,681,459.80
  5. Step 5: Solve for x
    x = 56,681,459.80/8,478.93
  6. Step 6: Final answer
    x = 6,684.98

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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.