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Finding the Fourth Proportional to 14,842.86, 20,482.20 and 8,874.63

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Solution

The fourth proportional to 14,842.86, 20,482.20 and 8,874.63 is: 12,246.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,842.86 : 20,482.20 = 8,874.63 : x
  2. Step 2: Convert to fraction form
    14,842.86/20,482.20 = 8,874.63/x
  3. Step 3: Cross multiply
    14,842.86x = 20,482.20 × 8,874.63
  4. Step 4: Simplify right side
    14,842.86x = 181,771,946.59
  5. Step 5: Solve for x
    x = 181,771,946.59/14,842.86
  6. Step 6: Final answer
    x = 12,246.42

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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.