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Finding the Fourth Proportional to 16,429.60, 22,674 and 9,356.32

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Solution

The fourth proportional to 16,429.60, 22,674 and 9,356.32 is: 12,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,429.60 : 22,674 = 9,356.32 : x
  2. Step 2: Convert to fraction form
    16,429.60/22,674 = 9,356.32/x
  3. Step 3: Cross multiply
    16,429.60x = 22,674 × 9,356.32
  4. Step 4: Simplify right side
    16,429.60x = 212,145,199.68
  5. Step 5: Solve for x
    x = 212,145,199.68/16,429.60
  6. Step 6: Final answer
    x = 12,912.38

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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.