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Finding the Fourth Proportional to 22,424.80, 33,619.92 and 7,624.48

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Solution

The fourth proportional to 22,424.80, 33,619.92 and 7,624.48 is: 11,430.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,424.80 : 33,619.92 = 7,624.48 : x
  2. Step 2: Convert to fraction form
    22,424.80/33,619.92 = 7,624.48/x
  3. Step 3: Cross multiply
    22,424.80x = 33,619.92 × 7,624.48
  4. Step 4: Simplify right side
    22,424.80x = 256,334,407.64
  5. Step 5: Solve for x
    x = 256,334,407.64/22,424.80
  6. Step 6: Final answer
    x = 11,430.84

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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.