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Finding the Fourth Proportional to 7,390.16, 10,198.02 and 4,203.03

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Solution

The fourth proportional to 7,390.16, 10,198.02 and 4,203.03 is: 5,799.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.16 : 10,198.02 = 4,203.03 : x
  2. Step 2: Convert to fraction form
    7,390.16/10,198.02 = 4,203.03/x
  3. Step 3: Cross multiply
    7,390.16x = 10,198.02 × 4,203.03
  4. Step 4: Simplify right side
    7,390.16x = 42,862,533.01
  5. Step 5: Solve for x
    x = 42,862,533.01/7,390.16
  6. Step 6: Final answer
    x = 5,799.95

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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.