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Finding the Fourth Proportional to 7,326.36, 10,989.54 and 4,865.99

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Solution

The fourth proportional to 7,326.36, 10,989.54 and 4,865.99 is: 7,298.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.36 : 10,989.54 = 4,865.99 : x
  2. Step 2: Convert to fraction form
    7,326.36/10,989.54 = 4,865.99/x
  3. Step 3: Cross multiply
    7,326.36x = 10,989.54 × 4,865.99
  4. Step 4: Simplify right side
    7,326.36x = 53,474,936.80
  5. Step 5: Solve for x
    x = 53,474,936.80/7,326.36
  6. Step 6: Final answer
    x = 7,298.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.