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Finding the Fourth Proportional to 17,210.79, 25,815.65 and 4,898.79

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Solution

The fourth proportional to 17,210.79, 25,815.65 and 4,898.79 is: 7,348.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,210.79 : 25,815.65 = 4,898.79 : x
  2. Step 2: Convert to fraction form
    17,210.79/25,815.65 = 4,898.79/x
  3. Step 3: Cross multiply
    17,210.79x = 25,815.65 × 4,898.79
  4. Step 4: Simplify right side
    17,210.79x = 126,465,423.57
  5. Step 5: Solve for x
    x = 126,465,423.57/17,210.79
  6. Step 6: Final answer
    x = 7,348.03

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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.