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Finding the Fourth Proportional to 17,765.84, 26,648.84 and 4,617.28

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Solution

The fourth proportional to 17,765.84, 26,648.84 and 4,617.28 is: 6,925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.84 : 26,648.84 = 4,617.28 : x
  2. Step 2: Convert to fraction form
    17,765.84/26,648.84 = 4,617.28/x
  3. Step 3: Cross multiply
    17,765.84x = 26,648.84 × 4,617.28
  4. Step 4: Simplify right side
    17,765.84x = 123,045,155.96
  5. Step 5: Solve for x
    x = 123,045,155.96/17,765.84
  6. Step 6: Final answer
    x = 6,925.94

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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.