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Finding the Fourth Proportional to 19,639.94, 29,459.90 and 16,169.90

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Solution

The fourth proportional to 19,639.94, 29,459.90 and 16,169.90 is: 24,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.94 : 29,459.90 = 16,169.90 : x
  2. Step 2: Convert to fraction form
    19,639.94/29,459.90 = 16,169.90/x
  3. Step 3: Cross multiply
    19,639.94x = 29,459.90 × 16,169.90
  4. Step 4: Simplify right side
    19,639.94x = 476,363,530.14
  5. Step 5: Solve for x
    x = 476,363,530.14/19,639.94
  6. Step 6: Final answer
    x = 24,254.84

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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.