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Finding the Fourth Proportional to 7,235.48, 9,986.25 and 4,251.32

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Solution

The fourth proportional to 7,235.48, 9,986.25 and 4,251.32 is: 5,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,235.48 : 9,986.25 = 4,251.32 : x
  2. Step 2: Convert to fraction form
    7,235.48/9,986.25 = 4,251.32/x
  3. Step 3: Cross multiply
    7,235.48x = 9,986.25 × 4,251.32
  4. Step 4: Simplify right side
    7,235.48x = 42,454,673.16
  5. Step 5: Solve for x
    x = 42,454,673.16/7,235.48
  6. Step 6: Final answer
    x = 5,867.57

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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.