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Finding the Fourth Proportional to 25,355.68, 38,033.60 and 6,887.68

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Solution

The fourth proportional to 25,355.68, 38,033.60 and 6,887.68 is: 10,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,355.68 : 38,033.60 = 6,887.68 : x
  2. Step 2: Convert to fraction form
    25,355.68/38,033.60 = 6,887.68/x
  3. Step 3: Cross multiply
    25,355.68x = 38,033.60 × 6,887.68
  4. Step 4: Simplify right side
    25,355.68x = 261,963,266.05
  5. Step 5: Solve for x
    x = 261,963,266.05/25,355.68
  6. Step 6: Final answer
    x = 10,331.54

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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.