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Finding the Fourth Proportional to 7,419.54, 10,239.09 and 4,062.30

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Solution

The fourth proportional to 7,419.54, 10,239.09 and 4,062.30 is: 5,606.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.54 : 10,239.09 = 4,062.30 : x
  2. Step 2: Convert to fraction form
    7,419.54/10,239.09 = 4,062.30/x
  3. Step 3: Cross multiply
    7,419.54x = 10,239.09 × 4,062.30
  4. Step 4: Simplify right side
    7,419.54x = 41,594,255.31
  5. Step 5: Solve for x
    x = 41,594,255.31/7,419.54
  6. Step 6: Final answer
    x = 5,606.04

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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.