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Finding the Fourth Proportional to 25,531.80, 35,233.80 and 14,353.80

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Solution

The fourth proportional to 25,531.80, 35,233.80 and 14,353.80 is: 19,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,531.80 : 35,233.80 = 14,353.80 : x
  2. Step 2: Convert to fraction form
    25,531.80/35,233.80 = 14,353.80/x
  3. Step 3: Cross multiply
    25,531.80x = 35,233.80 × 14,353.80
  4. Step 4: Simplify right side
    25,531.80x = 505,738,918.44
  5. Step 5: Solve for x
    x = 505,738,918.44/25,531.80
  6. Step 6: Final answer
    x = 19,808.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.