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Finding the Fourth Proportional to 13,348.06, 18,424.17 and 8,814.06

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Solution

The fourth proportional to 13,348.06, 18,424.17 and 8,814.06 is: 12,165.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.06 : 18,424.17 = 8,814.06 : x
  2. Step 2: Convert to fraction form
    13,348.06/18,424.17 = 8,814.06/x
  3. Step 3: Cross multiply
    13,348.06x = 18,424.17 × 8,814.06
  4. Step 4: Simplify right side
    13,348.06x = 162,391,695.76
  5. Step 5: Solve for x
    x = 162,391,695.76/13,348.06
  6. Step 6: Final answer
    x = 12,165.94

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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.