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Finding the Fourth Proportional to 16,341.20, 24,511.80 and 10,509.20

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Solution

The fourth proportional to 16,341.20, 24,511.80 and 10,509.20 is: 15,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,341.20 : 24,511.80 = 10,509.20 : x
  2. Step 2: Convert to fraction form
    16,341.20/24,511.80 = 10,509.20/x
  3. Step 3: Cross multiply
    16,341.20x = 24,511.80 × 10,509.20
  4. Step 4: Simplify right side
    16,341.20x = 257,599,408.56
  5. Step 5: Solve for x
    x = 257,599,408.56/16,341.20
  6. Step 6: Final answer
    x = 15,763.80

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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.