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Finding the Fourth Proportional to 14,491.54, 20,001.45 and 8,828.16

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Solution

The fourth proportional to 14,491.54, 20,001.45 and 8,828.16 is: 12,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,491.54 : 20,001.45 = 8,828.16 : x
  2. Step 2: Convert to fraction form
    14,491.54/20,001.45 = 8,828.16/x
  3. Step 3: Cross multiply
    14,491.54x = 20,001.45 × 8,828.16
  4. Step 4: Simplify right side
    14,491.54x = 176,576,000.83
  5. Step 5: Solve for x
    x = 176,576,000.83/14,491.54
  6. Step 6: Final answer
    x = 12,184.76

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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.