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Finding the Fourth Proportional to 4,911.28, 7,367.16 and 1,624.28

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Solution

The fourth proportional to 4,911.28, 7,367.16 and 1,624.28 is: 2,436.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.28 : 7,367.16 = 1,624.28 : x
  2. Step 2: Convert to fraction form
    4,911.28/7,367.16 = 1,624.28/x
  3. Step 3: Cross multiply
    4,911.28x = 7,367.16 × 1,624.28
  4. Step 4: Simplify right side
    4,911.28x = 11,966,330.64
  5. Step 5: Solve for x
    x = 11,966,330.64/4,911.28
  6. Step 6: Final answer
    x = 2,436.50

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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.