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Finding the Fourth Proportional to 16,569.88, 24,808.32 and 12,429.16

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Solution

The fourth proportional to 16,569.88, 24,808.32 and 12,429.16 is: 18,608.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,569.88 : 24,808.32 = 12,429.16 : x
  2. Step 2: Convert to fraction form
    16,569.88/24,808.32 = 12,429.16/x
  3. Step 3: Cross multiply
    16,569.88x = 24,808.32 × 12,429.16
  4. Step 4: Simplify right side
    16,569.88x = 308,346,578.61
  5. Step 5: Solve for x
    x = 308,346,578.61/16,569.88
  6. Step 6: Final answer
    x = 18,608.86

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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.