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Finding the Fourth Proportional to 7,551.95, 10,421.97 and 4,195.01

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Solution

The fourth proportional to 7,551.95, 10,421.97 and 4,195.01 is: 5,789.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.95 : 10,421.97 = 4,195.01 : x
  2. Step 2: Convert to fraction form
    7,551.95/10,421.97 = 4,195.01/x
  3. Step 3: Cross multiply
    7,551.95x = 10,421.97 × 4,195.01
  4. Step 4: Simplify right side
    7,551.95x = 43,720,216.26
  5. Step 5: Solve for x
    x = 43,720,216.26/7,551.95
  6. Step 6: Final answer
    x = 5,789.27

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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.