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Finding the Fourth Proportional to 7,243.01, 9,995.10 and 4,099.13

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Solution

The fourth proportional to 7,243.01, 9,995.10 and 4,099.13 is: 5,656.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.01 : 9,995.10 = 4,099.13 : x
  2. Step 2: Convert to fraction form
    7,243.01/9,995.10 = 4,099.13/x
  3. Step 3: Cross multiply
    7,243.01x = 9,995.10 × 4,099.13
  4. Step 4: Simplify right side
    7,243.01x = 40,971,214.26
  5. Step 5: Solve for x
    x = 40,971,214.26/7,243.01
  6. Step 6: Final answer
    x = 5,656.66

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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.