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Finding the Fourth Proportional to 18,625.53, 27,905.80 and 15,525.46

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Solution

The fourth proportional to 18,625.53, 27,905.80 and 15,525.46 is: 23,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.53 : 27,905.80 = 15,525.46 : x
  2. Step 2: Convert to fraction form
    18,625.53/27,905.80 = 15,525.46/x
  3. Step 3: Cross multiply
    18,625.53x = 27,905.80 × 15,525.46
  4. Step 4: Simplify right side
    18,625.53x = 433,250,381.67
  5. Step 5: Solve for x
    x = 433,250,381.67/18,625.53
  6. Step 6: Final answer
    x = 23,261.10

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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.