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Finding the Fourth Proportional to 14,848.70, 20,491.70 and 8,134.62

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Solution

The fourth proportional to 14,848.70, 20,491.70 and 8,134.62 is: 11,226.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,848.70 : 20,491.70 = 8,134.62 : x
  2. Step 2: Convert to fraction form
    14,848.70/20,491.70 = 8,134.62/x
  3. Step 3: Cross multiply
    14,848.70x = 20,491.70 × 8,134.62
  4. Step 4: Simplify right side
    14,848.70x = 166,692,192.65
  5. Step 5: Solve for x
    x = 166,692,192.65/14,848.70
  6. Step 6: Final answer
    x = 11,226.05

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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.