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Finding the Fourth Proportional to 22,417.65, 33,618.61 and 6,618.46

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Solution

The fourth proportional to 22,417.65, 33,618.61 and 6,618.46 is: 9,925.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,417.65 : 33,618.61 = 6,618.46 : x
  2. Step 2: Convert to fraction form
    22,417.65/33,618.61 = 6,618.46/x
  3. Step 3: Cross multiply
    22,417.65x = 33,618.61 × 6,618.46
  4. Step 4: Simplify right side
    22,417.65x = 222,503,392.45
  5. Step 5: Solve for x
    x = 222,503,392.45/22,417.65
  6. Step 6: Final answer
    x = 9,925.37

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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.