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Finding the Fourth Proportional to 9,972.72, 14,953.84 and 4,423.68

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Solution

The fourth proportional to 9,972.72, 14,953.84 and 4,423.68 is: 6,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,972.72 : 14,953.84 = 4,423.68 : x
  2. Step 2: Convert to fraction form
    9,972.72/14,953.84 = 4,423.68/x
  3. Step 3: Cross multiply
    9,972.72x = 14,953.84 × 4,423.68
  4. Step 4: Simplify right side
    9,972.72x = 66,150,991.87
  5. Step 5: Solve for x
    x = 66,150,991.87/9,972.72
  6. Step 6: Final answer
    x = 6,633.19

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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.