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Finding the Fourth Proportional to 25,887.22, 38,830.88 and 7,167.32

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Solution

The fourth proportional to 25,887.22, 38,830.88 and 7,167.32 is: 10,750.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,887.22 : 38,830.88 = 7,167.32 : x
  2. Step 2: Convert to fraction form
    25,887.22/38,830.88 = 7,167.32/x
  3. Step 3: Cross multiply
    25,887.22x = 38,830.88 × 7,167.32
  4. Step 4: Simplify right side
    25,887.22x = 278,313,342.84
  5. Step 5: Solve for x
    x = 278,313,342.84/25,887.22
  6. Step 6: Final answer
    x = 10,750.99

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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.