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Finding the Fourth Proportional to 16,415.36, 24,604.80 and 12,506.88

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Solution

The fourth proportional to 16,415.36, 24,604.80 and 12,506.88 is: 18,746.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,415.36 : 24,604.80 = 12,506.88 : x
  2. Step 2: Convert to fraction form
    16,415.36/24,604.80 = 12,506.88/x
  3. Step 3: Cross multiply
    16,415.36x = 24,604.80 × 12,506.88
  4. Step 4: Simplify right side
    16,415.36x = 307,729,281.02
  5. Step 5: Solve for x
    x = 307,729,281.02/16,415.36
  6. Step 6: Final answer
    x = 18,746.42

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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.