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Finding the Fourth Proportional to 10,913.15, 16,374.65 and 4,674.80

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Solution

The fourth proportional to 10,913.15, 16,374.65 and 4,674.80 is: 7,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.15 : 16,374.65 = 4,674.80 : x
  2. Step 2: Convert to fraction form
    10,913.15/16,374.65 = 4,674.80/x
  3. Step 3: Cross multiply
    10,913.15x = 16,374.65 × 4,674.80
  4. Step 4: Simplify right side
    10,913.15x = 76,548,108.57
  5. Step 5: Solve for x
    x = 76,548,108.57/10,913.15
  6. Step 6: Final answer
    x = 7,014.30

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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.