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Finding the Fourth Proportional to 6,645.51, 9,971.64 and 5,095.44

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Solution

The fourth proportional to 6,645.51, 9,971.64 and 5,095.44 is: 7,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.51 : 9,971.64 = 5,095.44 : x
  2. Step 2: Convert to fraction form
    6,645.51/9,971.64 = 5,095.44/x
  3. Step 3: Cross multiply
    6,645.51x = 9,971.64 × 5,095.44
  4. Step 4: Simplify right side
    6,645.51x = 50,809,893.32
  5. Step 5: Solve for x
    x = 50,809,893.32/6,645.51
  6. Step 6: Final answer
    x = 7,645.75

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1.5x scale

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.