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Finding the Fourth Proportional to 17,311.09, 25,971.00 and 4,831.10

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Solution

The fourth proportional to 17,311.09, 25,971.00 and 4,831.10 is: 7,247.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,311.09 : 25,971.00 = 4,831.10 : x
  2. Step 2: Convert to fraction form
    17,311.09/25,971.00 = 4,831.10/x
  3. Step 3: Cross multiply
    17,311.09x = 25,971.00 × 4,831.10
  4. Step 4: Simplify right side
    17,311.09x = 125,468,547.74
  5. Step 5: Solve for x
    x = 125,468,547.74/17,311.09
  6. Step 6: Final answer
    x = 7,247.87

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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.