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Finding the Fourth Proportional to 7,197.17, 9,928.58 and 4,644.23

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Solution

The fourth proportional to 7,197.17, 9,928.58 and 4,644.23 is: 6,406.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,197.17 : 9,928.58 = 4,644.23 : x
  2. Step 2: Convert to fraction form
    7,197.17/9,928.58 = 4,644.23/x
  3. Step 3: Cross multiply
    7,197.17x = 9,928.58 × 4,644.23
  4. Step 4: Simplify right side
    7,197.17x = 46,110,536.23
  5. Step 5: Solve for x
    x = 46,110,536.23/7,197.17
  6. Step 6: Final answer
    x = 6,406.76

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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.