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Finding the Fourth Proportional to 22,438.60, 33,620.10 and 17,740.60

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Solution

The fourth proportional to 22,438.60, 33,620.10 and 17,740.60 is: 26,581.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,438.60 : 33,620.10 = 17,740.60 : x
  2. Step 2: Convert to fraction form
    22,438.60/33,620.10 = 17,740.60/x
  3. Step 3: Cross multiply
    22,438.60x = 33,620.10 × 17,740.60
  4. Step 4: Simplify right side
    22,438.60x = 596,440,746.06
  5. Step 5: Solve for x
    x = 596,440,746.06/22,438.60
  6. Step 6: Final answer
    x = 26,581.01

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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.