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Finding the Fourth Proportional to 14,842.92, 20,485.04 and 8,874.52

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Solution

The fourth proportional to 14,842.92, 20,485.04 and 8,874.52 is: 12,247.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,842.92 : 20,485.04 = 8,874.52 : x
  2. Step 2: Convert to fraction form
    14,842.92/20,485.04 = 8,874.52/x
  3. Step 3: Cross multiply
    14,842.92x = 20,485.04 × 8,874.52
  4. Step 4: Simplify right side
    14,842.92x = 181,794,897.18
  5. Step 5: Solve for x
    x = 181,794,897.18/14,842.92
  6. Step 6: Final answer
    x = 12,247.92

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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.