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Finding the Fourth Proportional to 14,921.34, 22,382.01 and 8,343.93

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Solution

The fourth proportional to 14,921.34, 22,382.01 and 8,343.93 is: 12,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.34 : 22,382.01 = 8,343.93 : x
  2. Step 2: Convert to fraction form
    14,921.34/22,382.01 = 8,343.93/x
  3. Step 3: Cross multiply
    14,921.34x = 22,382.01 × 8,343.93
  4. Step 4: Simplify right side
    14,921.34x = 186,753,924.70
  5. Step 5: Solve for x
    x = 186,753,924.70/14,921.34
  6. Step 6: Final answer
    x = 12,515.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.