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Finding the Fourth Proportional to 6,665.47, 9,995.93 and 4,811.08

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Solution

The fourth proportional to 6,665.47, 9,995.93 and 4,811.08 is: 7,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.47 : 9,995.93 = 4,811.08 : x
  2. Step 2: Convert to fraction form
    6,665.47/9,995.93 = 4,811.08/x
  3. Step 3: Cross multiply
    6,665.47x = 9,995.93 × 4,811.08
  4. Step 4: Simplify right side
    6,665.47x = 48,091,218.90
  5. Step 5: Solve for x
    x = 48,091,218.90/6,665.47
  6. Step 6: Final answer
    x = 7,214.98

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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.