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Finding the Fourth Proportional to 10,752.40, 16,125.40 and 4,174.80

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Solution

The fourth proportional to 10,752.40, 16,125.40 and 4,174.80 is: 6,260.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,752.40 : 16,125.40 = 4,174.80 : x
  2. Step 2: Convert to fraction form
    10,752.40/16,125.40 = 4,174.80/x
  3. Step 3: Cross multiply
    10,752.40x = 16,125.40 × 4,174.80
  4. Step 4: Simplify right side
    10,752.40x = 67,320,319.92
  5. Step 5: Solve for x
    x = 67,320,319.92/10,752.40
  6. Step 6: Final answer
    x = 6,260.96

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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.