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Finding the Fourth Proportional to 16,641.20, 24,958.20 and 7,281.20

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Solution

The fourth proportional to 16,641.20, 24,958.20 and 7,281.20 is: 10,920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,641.20 : 24,958.20 = 7,281.20 : x
  2. Step 2: Convert to fraction form
    16,641.20/24,958.20 = 7,281.20/x
  3. Step 3: Cross multiply
    16,641.20x = 24,958.20 × 7,281.20
  4. Step 4: Simplify right side
    16,641.20x = 181,725,645.84
  5. Step 5: Solve for x
    x = 181,725,645.84/16,641.20
  6. Step 6: Final answer
    x = 10,920.22

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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.