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Finding the Fourth Proportional to 18,045.54, 24,900.80 and 10,087.50

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Solution

The fourth proportional to 18,045.54, 24,900.80 and 10,087.50 is: 13,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.54 : 24,900.80 = 10,087.50 : x
  2. Step 2: Convert to fraction form
    18,045.54/24,900.80 = 10,087.50/x
  3. Step 3: Cross multiply
    18,045.54x = 24,900.80 × 10,087.50
  4. Step 4: Simplify right side
    18,045.54x = 251,186,820
  5. Step 5: Solve for x
    x = 251,186,820/18,045.54
  6. Step 6: Final answer
    x = 13,919.61

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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.