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Finding the Fourth Proportional to 17,759.76, 26,641.07 and 5,913.10

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Solution

The fourth proportional to 17,759.76, 26,641.07 and 5,913.10 is: 8,870.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,759.76 : 26,641.07 = 5,913.10 : x
  2. Step 2: Convert to fraction form
    17,759.76/26,641.07 = 5,913.10/x
  3. Step 3: Cross multiply
    17,759.76x = 26,641.07 × 5,913.10
  4. Step 4: Simplify right side
    17,759.76x = 157,531,336.93
  5. Step 5: Solve for x
    x = 157,531,336.93/17,759.76
  6. Step 6: Final answer
    x = 8,870.13

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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.