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Finding the Fourth Proportional to 7,395.05, 10,205.39 and 4,038.09

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Solution

The fourth proportional to 7,395.05, 10,205.39 and 4,038.09 is: 5,572.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,395.05 : 10,205.39 = 4,038.09 : x
  2. Step 2: Convert to fraction form
    7,395.05/10,205.39 = 4,038.09/x
  3. Step 3: Cross multiply
    7,395.05x = 10,205.39 × 4,038.09
  4. Step 4: Simplify right side
    7,395.05x = 41,210,255.13
  5. Step 5: Solve for x
    x = 41,210,255.13/7,395.05
  6. Step 6: Final answer
    x = 5,572.68

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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.