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Finding the Fourth Proportional to 14,608.40, 21,887.40 and 6,801.20

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Solution

The fourth proportional to 14,608.40, 21,887.40 and 6,801.20 is: 10,190.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.40 : 21,887.40 = 6,801.20 : x
  2. Step 2: Convert to fraction form
    14,608.40/21,887.40 = 6,801.20/x
  3. Step 3: Cross multiply
    14,608.40x = 21,887.40 × 6,801.20
  4. Step 4: Simplify right side
    14,608.40x = 148,860,584.88
  5. Step 5: Solve for x
    x = 148,860,584.88/14,608.40
  6. Step 6: Final answer
    x = 10,190.07

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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.