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Finding the Fourth Proportional to 7,235.88, 9,985.92 and 4,252.68

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Solution

The fourth proportional to 7,235.88, 9,985.92 and 4,252.68 is: 5,868.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,235.88 : 9,985.92 = 4,252.68 : x
  2. Step 2: Convert to fraction form
    7,235.88/9,985.92 = 4,252.68/x
  3. Step 3: Cross multiply
    7,235.88x = 9,985.92 × 4,252.68
  4. Step 4: Simplify right side
    7,235.88x = 42,466,922.27
  5. Step 5: Solve for x
    x = 42,466,922.27/7,235.88
  6. Step 6: Final answer
    x = 5,868.94

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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.