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Finding the Fourth Proportional to 7,395.84, 10,205.16 and 4,251.42

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Solution

The fourth proportional to 7,395.84, 10,205.16 and 4,251.42 is: 5,866.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,395.84 : 10,205.16 = 4,251.42 : x
  2. Step 2: Convert to fraction form
    7,395.84/10,205.16 = 4,251.42/x
  3. Step 3: Cross multiply
    7,395.84x = 10,205.16 × 4,251.42
  4. Step 4: Simplify right side
    7,395.84x = 43,386,421.33
  5. Step 5: Solve for x
    x = 43,386,421.33/7,395.84
  6. Step 6: Final answer
    x = 5,866.33

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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.