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Finding the Fourth Proportional to 17,411.90, 26,114.51 and 4,928.91

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Solution

The fourth proportional to 17,411.90, 26,114.51 and 4,928.91 is: 7,392.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,411.90 : 26,114.51 = 4,928.91 : x
  2. Step 2: Convert to fraction form
    17,411.90/26,114.51 = 4,928.91/x
  3. Step 3: Cross multiply
    17,411.90x = 26,114.51 × 4,928.91
  4. Step 4: Simplify right side
    17,411.90x = 128,716,069.48
  5. Step 5: Solve for x
    x = 128,716,069.48/17,411.90
  6. Step 6: Final answer
    x = 7,392.42

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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.