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Finding the Fourth Proportional to 25,281.28, 37,921.94 and 6,813.28

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Solution

The fourth proportional to 25,281.28, 37,921.94 and 6,813.28 is: 10,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,281.28 : 37,921.94 = 6,813.28 : x
  2. Step 2: Convert to fraction form
    25,281.28/37,921.94 = 6,813.28/x
  3. Step 3: Cross multiply
    25,281.28x = 37,921.94 × 6,813.28
  4. Step 4: Simplify right side
    25,281.28x = 258,372,834.25
  5. Step 5: Solve for x
    x = 258,372,834.25/25,281.28
  6. Step 6: Final answer
    x = 10,219.93

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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.