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Finding the Fourth Proportional to 6,661.51, 9,993.48 and 3,543.01

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Solution

The fourth proportional to 6,661.51, 9,993.48 and 3,543.01 is: 5,315.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.51 : 9,993.48 = 3,543.01 : x
  2. Step 2: Convert to fraction form
    6,661.51/9,993.48 = 3,543.01/x
  3. Step 3: Cross multiply
    6,661.51x = 9,993.48 × 3,543.01
  4. Step 4: Simplify right side
    6,661.51x = 35,406,999.57
  5. Step 5: Solve for x
    x = 35,406,999.57/6,661.51
  6. Step 6: Final answer
    x = 5,315.16

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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.