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Finding the Fourth Proportional to 7,197.28, 9,931.41 and 4,010.07

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Solution

The fourth proportional to 7,197.28, 9,931.41 and 4,010.07 is: 5,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,197.28 : 9,931.41 = 4,010.07 : x
  2. Step 2: Convert to fraction form
    7,197.28/9,931.41 = 4,010.07/x
  3. Step 3: Cross multiply
    7,197.28x = 9,931.41 × 4,010.07
  4. Step 4: Simplify right side
    7,197.28x = 39,825,649.30
  5. Step 5: Solve for x
    x = 39,825,649.30/7,197.28
  6. Step 6: Final answer
    x = 5,533.43

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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.