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Finding the Fourth Proportional to 8,003.01, 11,979.87 and 4,722.51

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Solution

The fourth proportional to 8,003.01, 11,979.87 and 4,722.51 is: 7,069.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,003.01 : 11,979.87 = 4,722.51 : x
  2. Step 2: Convert to fraction form
    8,003.01/11,979.87 = 4,722.51/x
  3. Step 3: Cross multiply
    8,003.01x = 11,979.87 × 4,722.51
  4. Step 4: Simplify right side
    8,003.01x = 56,575,055.87
  5. Step 5: Solve for x
    x = 56,575,055.87/8,003.01
  6. Step 6: Final answer
    x = 7,069.22

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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.