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Finding the Fourth Proportional to 4,807.67, 7,209 and 2,173.92

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Solution

The fourth proportional to 4,807.67, 7,209 and 2,173.92 is: 3,259.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.67 : 7,209 = 2,173.92 : x
  2. Step 2: Convert to fraction form
    4,807.67/7,209 = 2,173.92/x
  3. Step 3: Cross multiply
    4,807.67x = 7,209 × 2,173.92
  4. Step 4: Simplify right side
    4,807.67x = 15,671,762.25
  5. Step 5: Solve for x
    x = 15,671,762.25/4,807.67
  6. Step 6: Final answer
    x = 3,259.74

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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.