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Finding the Fourth Proportional to 4,991.51, 6,888.11 and 3,002.29

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Solution

The fourth proportional to 4,991.51, 6,888.11 and 3,002.29 is: 4,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.51 : 6,888.11 = 3,002.29 : x
  2. Step 2: Convert to fraction form
    4,991.51/6,888.11 = 3,002.29/x
  3. Step 3: Cross multiply
    4,991.51x = 6,888.11 × 3,002.29
  4. Step 4: Simplify right side
    4,991.51x = 20,680,071.54
  5. Step 5: Solve for x
    x = 20,680,071.54/4,991.51
  6. Step 6: Final answer
    x = 4,143.05

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1.5x scale

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.