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Finding the Fourth Proportional to 7,284.80, 10,927.20 and 4,004.30

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Solution

The fourth proportional to 7,284.80, 10,927.20 and 4,004.30 is: 6,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.80 : 10,927.20 = 4,004.30 : x
  2. Step 2: Convert to fraction form
    7,284.80/10,927.20 = 4,004.30/x
  3. Step 3: Cross multiply
    7,284.80x = 10,927.20 × 4,004.30
  4. Step 4: Simplify right side
    7,284.80x = 43,755,786.96
  5. Step 5: Solve for x
    x = 43,755,786.96/7,284.80
  6. Step 6: Final answer
    x = 6,006.45

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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.