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Finding the Fourth Proportional to 18,852.41, 28,235.52 and 8,998.61

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Solution

The fourth proportional to 18,852.41, 28,235.52 and 8,998.61 is: 13,477.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.41 : 28,235.52 = 8,998.61 : x
  2. Step 2: Convert to fraction form
    18,852.41/28,235.52 = 8,998.61/x
  3. Step 3: Cross multiply
    18,852.41x = 28,235.52 × 8,998.61
  4. Step 4: Simplify right side
    18,852.41x = 254,080,291.45
  5. Step 5: Solve for x
    x = 254,080,291.45/18,852.41
  6. Step 6: Final answer
    x = 13,477.34

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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.