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Finding the Fourth Proportional to 22,613.79, 33,922.13 and 7,619.69

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Solution

The fourth proportional to 22,613.79, 33,922.13 and 7,619.69 is: 11,430.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.79 : 33,922.13 = 7,619.69 : x
  2. Step 2: Convert to fraction form
    22,613.79/33,922.13 = 7,619.69/x
  3. Step 3: Cross multiply
    22,613.79x = 33,922.13 × 7,619.69
  4. Step 4: Simplify right side
    22,613.79x = 258,475,970.63
  5. Step 5: Solve for x
    x = 258,475,970.63/22,613.79
  6. Step 6: Final answer
    x = 11,430.02

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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.